Creatures that you swallow are quickly absorbed and soon utterly annihilated.
Benefit(s): When you start your turn having swallowed at least one creature, each swallowed creature must succeed at a Fortitude save (DC = 10 + 1/2 your Hit Dice + your Charisma modifier) or gain a temporary negative level. Swallowed creatures that die from these negative levels are consumed as per disintegrate. This is a death effect.
Special: If you are of the undead type, each time a swallowed creature gains a temporary negative level from this ability, you add 5 temporary hit points to the number of hit points that swallowed creatures must deal to escape, up to a maximum of 15 temporary hit points. These temporary hit points last for 10 minutes.
Pathfinder Roleplaying Game Horror Adventures © 2016, Paizo Inc.; Authors: John Bennett, Clinton J. Boomer, Logan Bonner, Robert Brookes, Jason Bulmahn, Ross Byers, Jim Groves, Steven Helt, Thurston Hillman, Eric Hindley, Brandon Hodge, Mikko Kallio, Jason Nelson, Tom Phillips, Stephen Radney-MacFarland, Alistair Rigg, Alex Riggs, David N. Ross, F. Wesley Schneider, David Schwartz, Mark Seifter, and Linda Zayas-Palmer.