“If this is the book I think it is... I'm relatively certain it's human.'

A hot, sour feeling rose in the back of Esther's throat. 'What do you mean, human?'

'I mean the thread looks like it could be a combination of hair and sinew. The glue is likely rendered collagen.' He pinched the cover between thumb and forefinger. 'The leather's probably human skin.'

'Okay,' Collins said, 'great, well, if you need me, I'll be outside screaming.”