Zzzap cauterizes wounds, Gibbs’ mechanical foot

The lieutenant had been the last person to wear the original Cerberus armor. His mind had been under someone else’s control and he’d attacked St. George, damaging a dozen buildings across the Mount in the process. And then Zzzap had blasted off one of the battlesuit’s feet and a good part of the calf. Gibbs’s own foot had been incinerated in the process, cauterized right through the ankle. Doc Connolly had to remove what was left and an inch of the leg itself to make a clean stump…
[Danielle] built him a new foot as a peace offering. It was purely mechanical, a steampunk thing made of steel and brass and a collection of gears Cesar had found for her. The joints worked off pressure and counterweight and movement. Gibbs could walk again with a faint limp, and they’d never spoken of his part in the armor’s destruction.

Excerpt From Ex-Isle, pg 56-57
Peter Clines
https://books.apple.com/us/book/ex-isle/id989619017