He could not get at Amshar without thrusting Mrs.Falchion aside, and, as I said, the wall was narrow.

He was bent like a tiger about to spring.
Seeing Mrs.Falchion and Amshar apart from the others,--Mrs.Falchion having insisted on crossing this narrow and precipitous wall,--he had suddenly rushed after them.

As he did so, Miss Treherne saw him, and cried out.

Mrs.Falchion faced round swiftly, and then came this tragic situation.
Some one must die.
Seeing that Mrs.Falchion made no effort to dislodge Amshar from her skirts, the Arab presently leaped forward.

Mrs.Falchion's arms went out suddenly, and she caught the wrist that held the dagger.