They shook like they were two stories up and the building they were in got hit by an airplane...
only they weren't in a building.
They were, in fact, a few stories below the surface.
"Earthquake?" Trevor asked, even though he knew that couldn't possibly be the answer.
Gramps shook his head. "That was no trembler," he said. "Something hit the complex."
"The complex?"
"The apartment complex we're hiding under. It's a dummy, though. No one actually lives in any of the apartments. We are under attack. We brought them home with us. Skip, go get your mom and Cathy."
"And my boy," Adam added.
"Meet us in the van."