Great audiobook "The Submarine Boys' Lightning Cruise - Victor G. Durham" online free

Captain Jack Benson and Hal Hastings have been sailing in torpedo submarines a while now. But, there is new danger that they will have to get used to, having the actual torpedoes onboard! They will be trying out a new boat, named after Hal, with the Navy watching closely. But trouble is always close by. (Ann Boulais)