Up from the sea come wrecked freighters, dredged up pieces of history, sometimes golden treasure; more often it is the waterlogged items that have ingloriously sunk. It's a fascinating set of facts and the author keeps the fascination in double focus--what has gone down is given its story and the methods of the raising (seemingly a matter each time of old and new techniques adapted to changing situations requiring quick, common sense decisions) which make an absorbing story, too. The illustrations are by Herman Vestal. Those that depict the various raisings and all their tackle are excellent. It's a good combination of history adventure, and mechanical know-how, made both easy and interesting.