Wrayford laughed impatiently and released her, and she stood shrinking against the wall, her hands pressed to her breast. Wrayford straightened himself and she felt that he was listening intently. Then he dropped to his knees and laid his hands against the boards of the sliding floor. It yielded at once, as if with a kind of evil alacrity; and at their feet they saw, under the motionless solid night, another darker night that moved and shimmered. Wrayford threw himself back against the opposite wall, behind the door.
A key rattled in the lock, and after a moment’s fumbling the door swung open. Wrayford and Isabel saw a man’s black bulk against the obscurity. It moved a step, lurched forward, and vanished out of sight. From the depths beneath them there came a splash and a long cry.
“Go! go!” Wrayford cried out, feeling blindly for Isabel in the blackness.
“Oh—” she cried, wrenching herself away from him.
He stood still a moment, as if dazed; then she saw him suddenly plunge from her side, and heard another splash far down, and a tumult in the beaten water.
In the darkness she cowered close to the opening, pressing her face over the edge, and crying out the name of each of the two men in turn. Suddenly she began to see: the obscurity was less opaque, as if a faint moon-pallor diluted it. Isabel vaguely discerned the two shapes struggling in the black pit below her; once she saw the gleam of a face. She glanced up desperately for some means of rescue, and caught sight of the oars ranged on brackets against the wall. She snatched down the nearest, bent over the opening, and pushed the oar down into the blackness, crying out her husband’s name.
The clouds had swallowed the moon again, and she could see nothing below her; but she still heard the tumult in the beaten water.
“Cobham! Cobham!” she screamed.
As if in answer, she felt a mighty clutch on the oar, a clutch that strained her arms to the breaking-point as she tried to brace her knees against the runners of the sliding floor.
“Hold on! Hold on! Hold on!” a voice gasped out from below; and she held on, with racked muscles, with bleeding palms, with eyes straining from their sockets, and a heart that tugged at her as the weight was tugging at the oar.