"About that," I said. "How come it's still there? Normally I'd heal a small puncture like that in minutes." I'd been pretty shocked to see the four purple dots on my shoulder this morning - two top canines and two smaller ones from his bottom teeth. Shocked, but excited too, in a weird sort of way.

"It's a stain that's formed when our saliva mixes with blood," Ty answered. "It'll last maybe a week or so on you, same as on a Zendir - kind of like a hickey on a ...