Vance pulled a chair to my bedside and sat, his expression going grim.

“A synthetic paralytic.

A rare one.

I’m not going to walk you through the chemistry of it, and honestly you don’t want it in your head.

What it does is enough: it slows the body down so far, so completely, that to anyone checking at the scene, the person appears to be gone.

It’s a killer’s tool, Mrs.

Pembroke, and an expensive one.

Whoever chose it chose it for one reason — so that the three of you would be declared dead and put in the ground while you were still, in truth, alive.”