Siblings of the night

Gert had a half day at school yesterday, so I met her at the bus for a lunch date at McDonalds.

A bunch of kids from Gert's school had had the same idea, so as we were waiting in line for McNuggets and fries, she pointed out to me which kids she knew.

One set of blonde-haired kids accompanied by a grandparent looked about the same age, so I asked Gert if she knew if they were twins.

"Yes, they are!" she told me. "But they don't look exactly alike. They're nocturnal."

The twins looked directly at me with innocent smiles, and their pale eyes flashed red.