No dog, with thrice Lad's muscular strength, could have accomplished the impossibility of springing out through that high, narrow window, carrying a weight of fifty pounds between his teeth.
Lad's leap did not carry him half the distance he had aimed for.

Back to the floor he fell, Lady with him.
Maddened by pain and by choking and by stark terror, Lady had not the wit to realize what Lad was attempting.

All she knew was that he had seized her roughly by the neck, and had leaped in air with her; and had then brought her bangingly down upon the torturing hot boards.

And her panic was augmented by delirious rage.
At Lad's face she flew, snarling murderously.

One slash of her curving eyetooth laid bare his cheek.