Leo frowned. Timmy was eight. He didn’t send weird cryptic APK links. But the notification had a tiny thumbnail—a grainy photo of Timmy’s sneaker, the one with the dinosaur patch, lying on a rusty train track.

Feed Charles, or Timmy gets it.

Then a second message arrived. It wasn’t a text. It was a Google Play notification.

Leo opened the app.

And somewhere in the dark, three hundred miles away, Charles skittered closer to Grandma’s house.