Like hell he'd fall for the same trap as his father ! I bet he's faking it !
Also, that Arabian clothed minx reminds me of the first princess for some reason.
goes to a suspect house that just happen to know alot about you and process to drink or eat anything suspect given to you the only "investigator" with no much backing other than some companion and a prince that don't held very high position and don't have any proof of the suspect "works"
Hes a couple steps ahead Im sure. He is faking, he had that alchemist make an antidote prior or hes using an illusion spell (or something along those lines). Shes getting fucked anyway.