The whole hall seemed to give a gasping breath. McGarrigle growled. "I'll have no mix-up in this hall!" He favored Herrick with a wink that said, "See me clear 'em out!" "Clancy, you stay here by the door; pick out half a dozen of 'em that see it through and hold 'em to be witnesses." The halls were cleared. Locks clicked as if by simultaneous miracles and even the adventurers from the street could be heard in full flight. Herrick and McGarrigle exchanged grim smiles. "Now! You keep back, Mr. Herrick! Clancy, look out!" The engineer jumped to one side. The door swung open.
Not a breath, not a movement, greeted the invaders
It gave directly into the dark room which had lately been full of light and music and a woman's passionate grace. Not a breath, not a movement, greeted the invaders. No shadow, now, on the white blind. Whatever was within the dusk simply waited. Herrick, pushing past Clancy, entered the room with McGarrigle. Behind them the superintendent leaned in and pressed an electric button. Light sprang forth, flooding everything. The room was empty.