His head was scarcely through the weeds that half screened the entrance when he sighted his enemy, who on the instant retreated to its stronghold in the wall of the cave. There, quicker than it takes to tell, each fastened on the other. Matched in weight and strength as they were, it is doubtful whether the otter would have got the mastery even in the open: in the conger's own retreat the attempt was hopeless. But the otter did not realize that, and made frantic efforts to drag the fish from its den. Despite them all he failed to move it a single inch, and the only result of his struggles was to free himself from the conger's jaws. When his breath was all but exhausted he relinquished his hold and turned to go. Thereupon the conger, taking the offensive, made a grab at him; it tried to seize him again near the mouth of the cave to which it pursued him, but in both cases it failed to get a grip of the slippery skin, and the next minute the otter was at the surface.
He had not done with his antagonist. As soon as his lungs were refilled, he dived again, and in a trice was back in the cave, face to face with his enemy, this time with tactics sobered by experience. Instead of laying hold of the fish, he kept making feints at it and retreating, with the
