When she heard the stamp of the foot, the dull slapping thud of the heavy blow, and the moaning rush of breath, she saw that bleeding face falling out of the sickly lamplight into the sooty shadows.
At last she could bear it no longer.

Her imagination was gloating in her mind over the horrors that it drew.

She forced her eyes to look.

It was better to see the worst than conjure still worse terrors in her mind.

She let her sight rush to those two half-naked bodies; it sped unerringly to the spot like a filing of iron to the magnet's teeth.
Now Tucker had regained the advantage which that momentary interruption of Traill's had lost him.