When I reviewed Myke Cole’s first Shadow Ops book, Control Point, back in 2012 I found that the book had a great premise, a fascinating world and thrilling action. I was less than enthused with the novel’s main character Oscar Britton. In Fortress Frontier, the second Shadow Ops novel, Cole expanded the characters and the world by introducing Colonel Bookbinder. The split perspective of that novel, primarily between Bookbinder and Britton, made for some better reading and the expanded world made for amazing set pieces. Breach Zone takes things to the next level and (re)introduces Lieutenant Colonel Jan Thorrson, aka Harlequin, as a central figure. After the events of Fortress Frontier, and with the previous Presidential administration on the outs, Thorsson has become the public “face” of the Supernatural Operations Corps (SOC). At the same time General Bookbinder has been moved into an advisory role thanks to his borderline “treasonous” actions in Fortress Frontier. All of that changes when goblins and other creatures, lead by Scylla, invade Manhattan. Pulled out of his PR position, Thorsson is placed in charge of the defense with limited support from SOC brass.