Since the Elona+ mod doesn't have an English translation in-game of most of the things that go on here, much of it is just an outline on how to proceed. Since it takes a while to get to this part of the game, more details need to be filled in. This includes specifics on exactly what awards are received at what time, and the floor number of the locked doors in Rehmido. The time that you receive some of the rewards may be off..
The Main QuestEdit
This is the main quest of the Elona+ mod of Elona. It cannot be accessed until the main quest of regular Elona is finished in North Tyris.
Once the Elona quest is done, you will appear on the world map at Port Kapul in North Tyris, having spent 3 years away while the ether forests regrew after being destroyed in the storyline of Elona. To begin the next quest, you have to head to South Tyris. This begins by walking or warping to the North Tyris south border town that is south of the Ancient Castle and Doujou. Talking to the Caravan Master there before this would give you the option to try to go to South Tyris, but it wouldn't work yet. Since you're done in with the quest, now he will turn a blind eye to you sneaking on. You are taken to South Tyris now, and you start on top of the South Tyris North Border town. To go back to North Tyris, you have to enter this town and talk to the Caravan Master there again. You cannot use the return spell to go back to any North Tyris location. It is important to enter this town now, so you have a location you can return to, since they are very rare in this part of the game.
Note: The current translation has you select "Observe caravan" to transition between North and South Tyris.
Obtaining the Key CardEdit
Go to Melugas and talk to <Heinrich> the iron carnel to the left of the north entrance. He will allow you rights to talk to Doctor <Gavela> about obtaining a "Key Card". He will request you to go obtain three quest items from three different dungeons; in exchange for the pass into the main dungeon Rehmido.
Obtain three quest items from bosses, very similar to unlocking the lower floors in Lesimas. To proceed, you must clear the Chaos Shrine, the Machinery Fort, and the Valley of Hereafter. Locations of the dungeons are detailed in the South Tyris page, or in their individual pages.
The first trip into RehmidoEdit
Rehmido is just down the small road that connects to Melugas. The dungeon itself is actually totally random except for the last floor and one floor in the middle. At 7th floor, you will end up fighting a <Mobile Communication Equipment>, presumably run by the Doctor. Easiest way to deal with it - steal its only weapon, grenade. There are also several mechanical enemies with it, including Xeren electric tanks and Xeren Satelite Units. After you clear this, you find that the way down is blocked. Return to the Doctor for a reward. He will also give you a key to proceed.
The second trip into RehmidoEdit
At 15th floor, you will run into <Orphe> the chaos follower and the <Chaos Unicorn>. More specifics on them will be in their own pages. Orphe is not a pushover, but the Unicorn is definitely the real problem here. After defeating them, you can proceed downward. At 23th floor you will meet <Mobile Communication Equipment> again (drops the same card and figurine), but this time it would be neutral. The door on this floor is locked. Return to the Doctor now, and he will give you a reward including 3 forbidden meats. He will also allow you to proceed to the final floor now.
The third trip into RehmidoEdit
Make your way down again. This time you can make it all the way down to the 30th and final floor. You will end up in a fight with the Meshera plant and several Infected yerles soldiers. No matter how many time you kill the Plant, you will be unable to keep it from respawning. You will receive a message to retreat, so do so. The floor does not allow teleportation, so go up the stairs you came in from to use Return. Return to the Doctor, who will give you a quest item in order to get the ether material you'll need to kill the Plant.
The Mountain PassEdit
To proceed, you need to head to the Ancient Garden, by going through Mountain Pass. This is north of the Chaos Shrine. Details on the pass are in it's own page. Once you arrive in the Ancient Garden, an alarm will sound. This is the same as an alarm when you force your way into a Guild, so you can use Incognito if you wish. Keep in mind that the ether corruption is still in effect here. There are many neutral NPCs in the town, but they neither talk or do anything else of use. There is not much here at all/. Your objective is the <Ether Generator>, located at the top of the town. If you have incognito, you can "speak" with it, to obtain the item you need. Killing it also completes this portion of the quest, along with giving you it's card and statue. You are now ready to finish the quest.
The Final BattleEdit
You can warp right back to the 30th floor in Rehmido. You can kill the Plant off for good now. However, once it is killed, the message "something shot out of the flesh cake!" appears, and you encounter the final boss, <Meshera Alpha> the deformed angel. Any remaining infected soldiers will regain their senses, and try to help you fight the boss. After it is defeated, you get the victory message.
The Beginning of Act 3Edit
Once you return to the world map, you get the "3 years have passed" message, and are automatically at Melugas. To continue the story, you need to return to Palmia and speak to Erystia. She will give you an option. If you accept, you have to talk to her again to receive a letter, which you then have to take to the captain near the docks at Port Kapul.
You will arrive in Ulm-Leson, but once you try to leave, you will be picked up by Doctor <Gavela> and whisked back to South Tyris. To get back to Lost Irva, you first need to meet with the Doctor in Melugas, then meet him again in the Ancient Garden near the stairs to the mountain pass. He will be waiting there as <Melugast type0> the dimension driver. This is now your warp point to return to Lost Irva. After accepting his ride back, he will wait at Ulm-Leson when you want to return to South Tyris. If you return, you will be dumped on the world map near Ludus. However, it is not necessary to return yet if you want to continue the quest.
First trip into the Cradle of ChaosEdit
To continue, you will next need to head to the Cradle of Chaos, which is located in the very center of the continent. Before entering, you must speak with <Sophia> in the Sacred Library of Irva. The Cradle is the main dungeon of this Act, and you will be able to use a Return spell or scroll to go back to lowest floor you reach. More details on the dungeon itself are available in it's own page. Your destination is the 4th floor, where you will speak with <Marka> the silver bear.
The return to PalmiaEdit
At this point, you cannot continue downward, so exit the dungeon using your preferred method, and go back to Ulm-Leson to get a ride back to South Tyris. You'll need to use the caravan to get back to Palmia from here, and then speak to Erystia again. Doing so will allow you to proceed further into the Cradle. You are also rewarded with the http://elona.wikia.com/wiki/Asteroid_Belt, 5 platinum coins, 5 card packs, 5 small medals and 500 music tickets).
Unfortunately, you will need to get back to Lost Irva at this point by returning to the Ancient Garden and getting a ride back with Gavela.
Second trip into the Cradle of ChaosEdit
Upon returning to the 4th floor, you will now be able to proceed downward. Your next goal is the 7th floor, which is a unique area where you will encounter <Aikage> the sinobi mask and a large number of his minions. When you defeat him, you will still not be able to proceed downward, and will need to exit again. However, upon leaving the dungeon, <Norne> the guide will appear, and take you to the Shrine of Guardian.
The Shrine is a small map that you pass on your way to the Cradle. Speaking to Norne in this area will now allow you to teleport back to Larna in North Tyris, speeding up your return to the main continent greatly.
Island in madnessEdit
To break the barrier on the stairs in the Cradle, you will have to return to South Tyris and visit Valm. Talk to Leiki near the beach to get three options. Choosing the second one will warp you to the bottom of a map called the "Island in madness". To complete the map, you have to defeat <Nine Head Dragon> the abyss at the top of the map after getting past his minions. Talking to the <Abyss Princess> near the start will allow you to return to Valm if you need to.
Until the boss is defeated, the map will randomly raise your sanity level with the message, "Horrible call rang in your head". The amount of sanity this costs you seems to rise the closer you get to Nine Heads. Normally, this would not be that tough to deal with, but when your sanity is raised to a certain level, you will be kicked out of the map with the message, "Your mind cannot stand any more".
The middle part of the map contains many jellyfish kraken, and many more tsathoggua surround Nine Heads. Since teleporting is allowed on the map, you could potentially skip the kraken, but the yith spamming eye of insanity will still cause a major problem because of the map restriction. The map can potentially be tough to clear without lowering your sanity somehow, so bringing along something that can reduce sanity described here, or using an evolved little girl or other pet with the rain of sanity special action really helps.
After defeating the boss, you can either use an escape scroll or talk to the Abyss Princess to leave. The death of the dragon unseals the stairs on the 7th floor of the Cradle. However, if you return to the Deep-sea castle and talk to the Princess, she will give you a free abyss lunch. When eaten, it restores some sanity, gives 15 turns of regeneration, and 15 turns of the Super Regene special action. She will also randomly give another one when given small medals, although it is more likely you will get her other lunches. To get the option, cancel out of her conversation options, which appear to be unusable in the English version of the game.
Following the defeat of Nine Heads, Erystia in Palmia will have new information for you. She will give you four conversation options. These options are quests that will become available once you accept them. The NPCs that take you to quest maps will not appear until you select the corresponding option.
New Test SiteEdit
Selecting the first option will cause <Regulus> the altered to appear in the inn inside of the North Tyris South Border town. Talking to him and selecting the second option will bring you to the New Test Site, which is accompanied by violent sound effects. Upon entering the map, you and your pets will lose a large fraction of health, but can recover it by normal means (this also happens when you save and reload inside the map, but it's unknown if this damage can actually kill your character). Regulus will accompany you as neutral help. While on the map, you will randomly take nerve damage with it's additional paralysis effect with the message, "Nerve gas has been floating around!".
The map itself is fairly small, and is filled with many meshera beta and testers. The testers are in small jail cells, so you must either use attacks from a distance or bypass the barrier in front of them in another manner. Once all the enemies on the map are defeated, your journal will be updated. You can then leave the map via the stairs or other desired method.
Afterwards, head back to Palmia. Erystia will reward you with an astral light pen, 2 scrolls of gain attribute (to be used for the new item enhancement with Irma), 3 jewels of brilliant diamond, and 20,000 music tickets.
Castle of IceEdit
Selecting the second option will cause <Marka> the silver bear to appear in Noyel's church. Talking to her and selecting the 2nd option will warp you to the Castle of Ice. Marka will accompany you for this mission as neutral help. The exit is a downward set of stairs near where you entered the map. Like the New Test Site, you will also lose a large fraction of health entering or loading into the map. It is snowing here, and the map itself might cause the Chills status effect.
The map is packed with chaos spirits, chaos paladins, chaos hunters and chaos shamans. Your target is <Lazasye> the destroy, who is near the top of the map. The chills effect will likely make it's ice ball attack much more dangerous. After it's defeat, you can exit from the stairs or with an escape spell.
Selecting the third option will cause <Shuraida> the expert merc to appear on the second floor of the Dock. Talking to him and selecting the 2nd option will warp you to the Ruined City. Shuraida and his mercenaries will accompany you for this mission as neutral help. The exit is a downward set of stairs under a well near where you entered the map. Unlike the New Test Site and Castle of Ice, you will not lose any health upon entering. The map randomly causes the bleed status to the player and all friendly characters.
The map starts you with Shuraida and his mercs (level 130) near you with the northern part of the city filled with a large number of zombies, necro dolls, liches, and a few crying witches (all level 140). Your target is <Roatonis> the infections, who is near the top right of the map in a ruined church along with his guards.
Afterwards, head back to Palmia. Erystia will reward you with 3 special steamed meat buns, 3 puff puff breads, 3 putitoros, 3 mandrake salads, 500,000 gold, and 3 tokens of friendship.
Selecting the forth option will cause <Raizel> the old wizard to give out his quest. Talking to him and selecting the 2nd option will warp you to the Eulderna City. Raizel will accompany you for this mission as neutral help and several neutral high magicians and a few palace magicians can be found in the map fighting the enemies. The exit is an upward set of stairs near where you entered the map. Like the Ruined city, you will take no damage upon entering the map. The map will sometimes announce the message, "Rebel magicians were fueled by revenge." which increases the special gauge of all enemy magical archers and eulderna summon knights in the map.
The map has a large number of chaos spirits, chaos paladins, chaos hunters, chaos shamans, eulderna summon knights, and magical archers. Your target is <Inqtual> the revenge, who is located to the bottom right of the map.
Afterwards, head back to Palmia. Erystia will reward you with a soul spindle, a (cursed) rod of wishing, 5 potions of potential and 2 high potions of nektar.
Third trip into the Cradle of ChaosEdit
After completing the 4 side quests, traveling to Melugas to talk to doctor <gavela> will cause him to give you a new journal item. You can return to to the 7th floor and will now be able to proceed downward. Your next goal is the 10th floor, which is a unique area where you will encounter <Egelveil> the bind. In the fight against Egelveil 4 Melugast typeMs will aid you. After defeating Egelveil, you can return to doctor <gavela> to finish the quest. He will reward you with <Mighty Arms>, 2x Scroll of Gain Attribute. a Spirit Cloth Material Kit and a mind disc.
Starting floor 12, various neutral NPCs can be found who possess special weapons every two floors or so. Once floor 15 is reached, named "Hall", Belphat the cosmic sword can be spoken to and recruited into your party if the second choice is selected. In the next floor, Saimef the dogged will give you a god heart if spoken to. When floor 20 is reached, no further progress can be made without a key, which you can either buy packaged with "recovery item assortment" or "maintenance assortment" for 99999 gp, from Manytia, the NPC in the room. A third option to "I wrest a key even kill you" can be chosen presumably if you don't want to pay.
In floor 25, Lankata the lightning blue will offer the player 4 untranslated answer choices before the player is surrounded by zanan soldiers, lothrian agents, and zanan enhanced soldiers. Every couple of turns in this floor, will cause the soldier's morale to go up. Lankata the lightning of blue is the target. Once Lankata is finished, you will receive a rusted bell.
In floor 30, Aikage the sinobi mask will talk to the player giving 3 untranslated answer choices. The room will be filled with necro dolls, an unitdead-jack, unitdead-queen, unitdead-king and unitdead-joker. Proceeding to floor 34, Alfred the cangnan can be spoken to, when this is done, he will proceed to shatter into bits and bobs leaving behind an axe, the Guliwelzen.
As of Elona Plus 1.63, the stairs to floor 37 are "In development"