She thought she had never before realized how gruesomely horrible that window was.
Nick's hand closed upon her elbow, and she breathed again.

"Shall we go and investigate upstairs ?" he said.
Mutely she yielded to the suggestion.

They went down the long vault-like hall, and turned through the archway in the south wall close to the window.

As they did so, a sudden sound rent the ghostly stillness, a sound that echoed and echoed from wall to wall, dying at last into a shrill thread of sound that seemed to merge into the cry of a sea-gull over the leaden waters.

As it died, there came a noise of running feet in the corridor above, and a white-faced maid-servant rushed gasping down the wide oak stairs.
Olga sprang to intercept her.