“Come on, let’s get that other freezer and be out of here,” Brad urged. “No time to start looking around.”

In haste, they went upstairs again to fetch the second container. Brad breathed a relieved sigh when it was safely on the shelf.

“That’s done,” he declared. “I’d hate—”

“You’d hate what?” Dan demanded as the other suddenly broke off.

“Nothing. Let’s get out of here.”

Dan knew from Brad’s odd manner that something had startled him. As for himself, he had heard no unusual sound.

“What was it?” he demanded, dropping his voice to a half-whisper.

“Don’t start whispering or you’ll give me the jitters,” Brad scolded.

“You did hear something?”

“Just the creaking of a board.” Brad forced himself to be indifferent. “But what of it? This building has been closed up for a long while and the wood is dry. It wasn’t anything.”