The Kraken, the great Leviathan, child of Daar, the great destroyer and devourer. Instinct: to devour

• Swallow a person, group, or place whole
• Spout forth murky water
• Spout forth watery demons of the abyss

Absolutely devoted to eventually escaping the Dungeon, the Hermit Dragon has spent ages poring over secrets, investigating the workings of the Dungeon, and scribing spells the likes of which the world has rarely seen. I hope you've got some juicy information to offer it if you interrupt it, though. Behind its robe-draped form is a barely-contained engine of primordial power, waiting to unleash itself on those foolish enough to interrupt its singleminded research. Instinct: To continue its lonely research

• When left alone, assume an innocuous human form
• When bothered, wither interlopers with merely a glare
• When enraged, breathe elemental force
• When appeased with new knowledge, reveal a secret hidden for ages
• When confronted, reveal yourself in all your terrible glory