Wysteria is a side world and has nothing to do with advancing in the game. Marleybone is after Krokotopia.
yes. he(or she) is right. but marleybone never has a lot of people. from times it's like a ghost town even! but how to get to marleybone is you first have to do the dungeon temple of storms and then krokopatra says she buried it in a type of deck or a treasure chest I think and the people of marleybone have it, then one of the archeoligests give you the key to marleybone! easy as pie really. in the dungeon I was the only one with healing powers! level 43 school Roslyn night coin! see you in the game! p.s. why does nobody hatch a pet with me?!
Yes, so basically there are certain quests that unlock different worlds. First you get Wizard City, Then comes Krokotopia, Next is Grizzlehiem, Then Wisteria, Then Marleybone, And so forth. You have certain quests you have to do, then Merle summons you to his office. Then there, he gives you a key to a new world.