“Big Muscle!” Blizzard shouted. “It's us, Bolt and Blizzard! We're to help you.”
“What?” said Muscle, glancing at us briefly. “What you kids doing—”
The lizard creature screeched and clamped its teeth around Muscle's neck. I thought for sure it was going to rip his head off, but Muscle just punched it in the throat so hard that it actually flew off him. It landed on the floor, but then immediately vanished before I could get a good look at it.
“Huh?” I said, looking around for the creature. “Where the heck did it go?”
“Turned invisible,” said Muscle as he pushed himself up to his feet and rubbed his neck. He was panting and sweating, even though it wasn't very hot in the Museum. “Don't ask me how. All I know is that it can do that.”
“Do you know what it is?” said Blizzard, who was als
