Sinner by Maggie Stiefvater
SINNER is the book that every Maggie Stiefvater and paranormal romance fan has been waiting for! SINNER is a companion book to the #1 bestselling SHIVER, LINGER and FOREVER trilogy. You thought it ended with FOREVER, but there's another story to tell - the one of Cole and Isabel... and this time they're in LA. There will be wolves, and there will be yearning. But most importantly there will be love. And no one does love like Maggie.