Bobby's life had been one of pretty constant peril and adventure, and after the manner of wilderness dwellers he had learned resourcefulness and self-possession. It is indeed a part of the daily training of every lad of the wilderness, that he acquire these attributes, until at last they become second nature to him, and instinctively he does the thing he should do when he comes suddenly face to face with unexpected dangers. And so it was with both Bobby and Jimmy, and thus it came about that Bobby did not lose his head when the iceberg began to turn, and when it was again at rest he found himself upon a high pinnacle, with the seething waters all around him. To be sure, his heart beat faster, and it was but natural that he should be excited, but his nerves were nevertheless under control, and his wits, too.