Crackbone Hollow is a dried-out elliptical lakebed, four miles long and just under two miles wide at its broadest point. The desiccated mud of its shoreline is littered with the countless bones of fish, amphibians, and other aquatic wildlife. The lake was drained in a magical catastrophe years ago and some resonance of that event still lingers, for Crackbone Hollow is perpetually under the effects of an antimagic shell, the essence of magic itself having also been leeched away. It is often used for clandestine meetings between those who wish to avoid scrying, ambushes of spellcasters, and the interrogation of sorcerous prisoners
This is a companion discussion topic for the original entry at http://athas.org/articles/Athasian-Plot-Hooks