Bat

Bats rest in caves, hollow trees and abandoned towers. At dusk they set out in search of food; ordinary small bats mainly hunt insects. They navigate in darkness using echoes of their own calls and may share their shelters in large colonies.

They are not natural enemies of the heroes. A disturbed colony can, however, turn a quiet passage into a chaotic stream of wings and sounds. A bat is agile in the air but physically weak. Its Flight ability increases physical defense against melee attacks only while it can actually fly.

The Game Master can use bats as a sign of a nearby cave or an open route outside. The heroes can let the animals fly past undisturbed and continue instead of drawing their weapons. Unusual behavior in a colony may provide a clue that something is disturbing its shelter.