"Er - Professor Lockhart? ...I wanted to - to get this book out of the library. Just for background reading....But the thing is, it's in the Restricted Section of the library, so I need a teacher to sign for it - I'm sure it would help me understand what you say in Gadding with Ghouls about slow-acting venoms..."
-- Hermione Granger (CS10)
Lockhart wrote about slow-acting venoms in his book Gadding with Ghouls (CS10)
References from the canon
- Snape told Umbridge that most venoms act too quickly to use as truth serums, so Lockhart's book may have been inaccurate (or merely made-up) (OP32).