Imps

Imps are small, flying, intelligent monsters found only in the Ultima Underworld games. They fight by throwing magical bolts. In one instance an imp assisted the Avatar in his quest to defeat the wizard Tyball by providing him with a magical crown which helped the Avatar navigate an otherwise invisible maze in the Stygian Abyss. When the Guardian encased Castle British in a black rock gem, an imp spied on the Castle's inhabitants on the Guardian's behalf.