In Pokemon Mystery Dungeon how do you get murky cave?

Answer 1

To trigger the event "The Curse of Ninetails", you must first rescue Medicham from Wish Cave. Then you go to the bulliten board to talk to Medicham and Ekans, who will ask you about Gengar. After that keep yourself busy for a day. The next day, look for Medicham and Ekans in the Pokemon Square and they will tell you that Gengar went to Mt. Freeze, but don't go to Mt. Freeze yet. Wait yet another day, and Gengar will visit you at your team base. He will ask you to take him to Mt. Freeze, and, of course, you accept (you don't have to do it right away, however.). When you finally go, you will have a tough task ahead: Protecting a lvl. 15 Gengar from the terrors of the already explored Mt. Freeze. Hoo Rah. Bring a lot of Reviver Seeds, as you will definitely need them. Lead him up 15 floors to meet Ninetails. After a while, Ninetails will give Gengar a 9-Tail Crest, gaining you access to Murky Cave. It's not over. There is still an objective in Murky Cave, but I'll let you figure it out. No sense in spoiling the fun, huh?

Answer 2

Well after you complete the game soon after a few days Medicham and Ekans from team Meanies will be near the pelliper post office. Keep on talking to them once each day and then Gengar will come to your house the next morning when medicham says he might off gone to mt freeze. He will ask you for help and you have to escort him through mt freeze so he can meet ninetails. After that the next day he will ask you to escort him through Murky Cave And then you get The Dungeon Murky Cave.