Gibber

Like their broods, vescavor queens yammer the endless chorus of the Abyss. Any creature within 15 feet of a vescavor queen must succeed at a DC 20 Will save or be confused for 1 round. A creature that successfully saves can't be affected by the same vescavor queen's gibbering for 24 hours. This is a mind-affecting sonic compulsion. The save DC is Constitution-based.