“How long has that been going into my coffee?” I asked.

“The amount in that one thermos mug was low enough to avoid sudden organ failure,” Mark said.

“Whoever’s putting it in your drink is doing it in small daily doses.

It builds up in your nervous system.

It causes bad dizzy spells, a metallic taste on the tongue, and creeping muscle weakness in the legs.”

“It looks like the beginning of a physical breakdown,” I said.

“That’s the idea,” Mark said.