It was cold, and Ab-Bot's ears weren't working. Mo hadn't suggested they go outside. He hadn't told a joke. He'd been asking permission to run in place. Jump. Breakdance. Anything that was MOVING and WARM in class, really.

Instead, he was frozen to his seat. Brrrr.

Mo raised his hand, wiggling his fingers and waving it around for blood flow. "Isa... I think it can be used to bolster other runes, right?"