Spyral's End

Collects Grayson issues #17-#20 and Grayson Annual #3 as well as Nightwing: Rebirth #1: Amazon blurb: "The spy stands alone. Grayson must go rogue from all his former allies, find the truth within the web of lies, and take down Spyral once and for all. But with one of his closest allies now his greatest foe, Dick Grayson will have to make his greatest sacrifice to save those he loves. "