tier 2 conjuration scroll and a drop from the Shamans and the Grand Shaman's chest. When used, it summons between 5 and 10 bats for the caster with the chance of summoning black bats. On new moon, it will summon black bats with a chance to summon Vampire Bats.
The words on the scroll read "Voco vespertilionis".
Unlike bats that have been tamed, you cannot name summoned bats. Summoned bats will also disappear after about 5 hours in game time.
A Magic Skill level of 14 is required to use it.