The Zaubertrank Recipe Book is an object that first appeared in "My Fair Wesen". It contains instructions on how to brew various Zaubertränke, among which is the Verfluchte Zwillingsschwester. It can only be opened by the blood of a Hexenbiest.
Appearances
"My Fair Wesen"
Adalind finds the book inside a chest in her mother's storage unit. She is unable to open it, and in her frustration she throws the book across the room. It shatters a mirror, and Adalind attempts to use a shard of glass to pry it open. She cuts her hand, and her blood causes the book to steam and open.