In spite of all the frantic shouts and directions of his friends he continued to utter piteous appeals for help from the bottom of the canoe. When at length he did recover enough self-control to take hold of another paddle, a serpent's head and body were actually in sight, approaching at a rapid speed.
Not only was Sir Arthur's life now at stake, but, in addition, guns, canoe, and all would be lost, thus leaving the rest of the party unarmed on the island, at the mercy of the ravenous serpents who appeared to swarm in the lake.
One of those sudden impulses common to his nature now flashed into Guy's mind, and, without giving himself a second for deliberation, he flung off jacket and shoes, and before anyone could raise a hand to restrain him, dived headforemost into the lake.
He came to the surface within ten yards of the canoe, which was making but feeble progress under Sir Arthur's erratic strokes.
Swimming hand over hand, Guy reached the bow and quickly drew himself over the side, just as the pursuing serpent came within seven or eight yards of the stern of the canoe.
His original intention to paddle for the island was instantly abandoned. Bidding Sir Arthur work lustily, he snatched up his rifle and took a careful aim at the approaching monster, who was snorting and hissing in a truly frightful manner.
The sharp report came at once, producing a thousand echoes through the hollow vault of the cavern, and under cover of the drifting smoke, which for the moment concealed the result of the shot, Guy sprang to Sir Arthur's aid with another paddle.
Half a dozen of his powerful strokes brought the canoe within a yard of the shore. A terrific splashing in his rear, as well as the loud shouts of his friends, warned Guy of the imminence of danger.
Fairly pushing Sir Arthur out of the canoe into the water, waist deep, he tossed the provisions far out on the island, caught up the guns, and made a frantic leap. He landed on the edge of the sand, and was instantly caught by eager arms, and pulled far up the beach. He turned, to realize with a shudder the narrowness of his escape.
Made furious by the bullet hole which Guy had put in his spotted skin, the monster threw himself on the abandoned canoe, which they had been unable to save, and with a sickening crunch it was shivered to a shapeless mass of fragments, under the pressure of the mighty coils. Then, as the serpent flung himself on shore, they realized that it was time to act. A blazing torch in the Greek's hand lit up the scene as Guy cocked his rifle and awaited an opportunity for a shot.