Lucas flipped through more pages of the book until he found what he was looking for:
Verity Tincture
*When consumed, makes the subject unable to deliberately lie for approximately one hour. Subject may still refuse to answer questions but cannot give false information. Warning: Subject will be aware of the effect and may become hostile.*
Not perfect, but it could work in the right circumstances.
The ingredients were somewhat exotic. He'd need to visit an apothecary in the nearest town tomorrow before heading to Jazhad.
A knock at the study door interrupted his reading. Lucas quickly stored the journal back in his storage space.
"Come in."
A servant entered and bowed slightly. "Young master, Lady Marie has prepared a room for you. If you'll follow me?"
The guest room was comfortable, with a large bed, a writing desk, and a window overlooking the mulberry groves. Someone had already brought up his bags from where Copper had been stabled.
