Treason‘s special editions are long-since sold, but I’ve seen them pop up on resale sites like Ebay! Pirates still has a few copies left of both the Broken Binding edition, and the Waterstones edition! Each version will be signed with sprayed edges. The Broken Binding editions are being released only for those who purchased copies of earlier books in the series, so if you buy a copy second-hand, make sure you email them so they can add you to their mailing list for future editions!