Invisible things chip the rooftop concrete as they sprint, accompanied by a staccato of sonic booms. Zach wrings his brain for what the training would have him do and remembers that, yes, this was the part where he got up to go potty.

As if summoned by the memory, Hidebound rises up before them, grinning, two-fisting pistols. “Move!” shouts Zach, grabs Sara by the waist, and hauls them both off the side of the roof.

“What the mother of shit!” she shrieks at him as they plummet.

“I was hoping I’d think of a follow-up by now,” Zach admits.