Sometimes, insane characters see mobs that are invisible to everybody but themselves. These can be noted from a distance as they always have unusual names. They can't be interacted with, tamed, or killed. Reported names and creatures follow:
*A crocodile named 'Terror', another named 'Sickness', another named 'Rotton Blood', another named 'Scorn'.
*A bear named 'Terror', another named 'Ratatosk', another named 'Scorn', another named 'Pus'.
*A small goblin named 'Watcher', another named 'Pain'.
*A black dragon named 'Scorn', another named 'Silent Death', another named 'Sickness', another named 'Omen'.