When the angry mob broke down his door, they discovered how a man could keep a book locked within bird-cages. 

Robert Watts was not supposed to have the spellbook, and the book had tried its hardest to make that felt. A witch’s grimoire has a will of its own, and if you want to use it freely then it must come to you freely. It had belonged to Anne-O-The-Blackthorn, a generous woman as witches went; she’d work her cures for the kindly asking, and it took a lot of provocation before she’d curse...