Rain hammered the roof of Vale Observatory hard enough to shake dust from the rafters. Astrid Vale climbed the spiral stairs anyway, one hand gripping a lantern and the other clutching a screwdriver between her teeth. Behind her, Finn followed with both arms wrapped around a wooden toolbox, his socks sliding on the polished steps.
“Grandmother said we were never to come up here during a storm,” Finn called.
“Grandmother says that about almost everything interesting.”

