The book contains information on female and male wyverns, as well as on cockatrices and basilisks.
- Antiquary in the Temple Quarter.
- Kalkstein in Chapter II.
- Bookseller in Tanner's Square in the Trade Quarter.
- Kalkstein sells it in Old Vizima in Chapter V.
- It is not strictly necessary to buy this book. You can get the Cockatrice entry from Siegfried when you first meet him in the sewers, and the Basilisk and Wyvern entries from the Townswoman sitting at The New Narakort. The Royal wyvern entry doesn't yield any new entries.
- Wyverns will yield Wing membrane (Rebis/Albedo) and Venom glands (Vermilion/Nigredo)