Read it through once

"Well, briefly, the knife was to blame for that, all around. A native servant slipped into our room in the palace in the night, to kill us and steal the knife on account of the fortune incrusted on its sheath, without a doubt. Luigi had it under his pillow; we were in bed together. There was a dim night-light burning. I was asleep, but Luigi was awake, and he thought he detected a vague form nearing the bed. He slipped the knife out of the sheath and was ready, and unembarrassed by hampering bed-clothes, for the weather was hot and we hadn't any. Suddenly that native rose at the bedside, and bent over me with his right hand lifted and a dirk in it aimed at my throat; but Luigi grabbed his wrist, pulled him downward, and drove his own knife into the man's neck. That is the whole story."