Ivana’s Whisper
Adventuring Gear, unknown
This poison bears a distinct scent and chemical message from Ivana Boritsi. A creature subjected to this poison must succeed on a DC 18 Constitution saving throw or experience the effects of a dream spell created by Ivana the next time they sleep. This poison is nonmagical, and Ivana doesn’t directly communicate with those affected during the dream. Rather, she creates the illusion of speaking with her intended target by alchemically crafting her message, predicting her target’s reactions, and chemically encoding in her responses. She wears this poison as a perfume or hides it within gift bouquets, allowing it to convey her message later.
Source: Van Richten’s Guide to Ravenloft p. 83