Desiree's agonized shrieks rose to the pitch of madness.
The eyes were closed, leaving but a vague mark for our spears, and besides, there was the danger of striking Desiree. We were barely able to keep pace with the thing as it receded swiftly down the broad passage. Desiree had twisted her body half round, and her face was turned toward us, shadowy as a ghost. Then her head fell forward and hung loosely and her lips were silent. She had fainted.
The thing moved swifter than ever; we were barely able to keep up with it. Harry made a desperate leap forward.
I cried out a warning, but one of the writhing tentacles swept against him and knocked him to the ground. He was up again on the instant and came rushing up from behind.
Suddenly the passage broadened until the walls were no longer visible; we had entered another cavern. I heard the sound of running water somewhere ahead of us. The pace of the reptile had not slackened for an instant.
Harry had again caught up with us, and as he ran at my side I saw him raise his spear aloft; but I caught his arm and held it.
"Desiree!" I panted.
Her body covered the only part of the thing that presented a fair mark. Harry swore, but his arm fell.
"To the side!" he gasped. "We can't get at it here!"
I saw his meaning and followed at his heels as he swerved suddenly to the right and sprang forward in an attempt to get past the reptile's head.