The creature of darkness and metal towered over Lisa. In the dappled shadow of the jungle, it raised one arm—the right one, which she now saw was significantly longer than the left. Instead of a hand, it ended in a hollow tube, which it steadied with its left hand.

“No tay moo ayvaas pahghana.” A voice boiled out from inside its helmet, thick as tar. It was unmistakably a language, but as if spoken from the bottom of a well. Something about it tickled in the back of Lisa’s brain, searching for a...