Apparently the leopardess had flung herself against the heavy door.

I looked at my companion.
"Come; come!" he said.
Ere we reached the door of the library, a howling yell came after us, mingled with the noise of claws that scored at the hard oak.

I hesitated, and half turned.
"To think of her lying there alone," I murmured, "-- with that terrible wound!" "Nothing will ever close that wound," he answered, with a sigh.

"It must eat into her heart! Annihilation itself is no death to evil.

Only good where evil was, is evil dead.