Dungeon Keeper Walkthrough: Mirthshire
This level isn't actually half bad. There's a multiply creatures to the left, so grab that and fortify all your walls fast. The bototm left has an increase level, and the top door has a bunch of traps, fairies, and a make safe gem. There's also a hidden world gem, but no 'transfer creature'. Mostly just fortify and train up!
Dungeon Keeper Walkthough Index