It seems we've been rolled up in an Amazon sale and Ties of Blood and Bone: The Second Book of Binding, is available in paperback at a deep discount. if you've been waiting, here is your chance! Not sure how long this sale will last.
https://www.amazon.com/Ties-Blood-Bone-Second-Binding/dp/1732316414/
https://www.amazon.com/Ties-Blood-Bone-Second-Binding/dp/1732316414/