Later, as the fireworks bloomed over Surrey, Agnes tugged Gru’s sleeve.

That gave Gru an idea. He pulled out his freeze-ray, but not for shooting. He used it to flash-freeze a puddle into a concave mirror. “Minions! Reflect positions!”

Agnes raised her little clay diya. It was still lit—she had been shielding it with her tiny hands. “You can’t steal a light that people choose to share,” Agnes said.