'Shadow and Bone': Alina's Collar, Easter Eggs and More of the Biggest Book Changes! (Exclusive)

Spoiler Alert! From Alina's gruesome collar to that epic easter egg in episode six and the Darkling's previously unseen past. ET is breaking down all the biggest 'Shadow and Bone' book changes with author Leigh Bardugo, showruner Eric Heisserer and stars Jessie Mei Li, Freddy Carter, Kit Young and Ben Barnes!