The Emerald Spire on floor four has players roll a fortitude save vs Stench as the enter the floor. The exact text is
Spoiler:
As characters descend to this level, they catch a good whiff of troglodyte stench. Have the PCs attempt DC 13 Fortitude saves against stench when they reach the first room (see the Stench entry on page 304 of the Pathfinder RPG Bestiary).
The Troglodytes have no Stench on their Bestiary and the text says nothing else about the stench, simply saying if PCs keep going, read the room description.
The Stench in Universal Monster Rules says it should list a time limit on the Stench. There is nothing about how long it should go on.
Aura stench (30 ft., DC 13, 10 rounds)
The stench ability is listed under Initiative and Senses as an Aura.
Neat, missed that. Thanks.
No problem, happy to help.