Boy Scouts in the North Sea The Mystery of a Sub

A PACKAGE VANISHES «Good night!» exclaimed a lad of about eighteen peering from the window in a railway coach. «This train's running on a regular lake!» «What's that, Jimmie?» asked a companion approaching the first speaker. «Are we on a ferry? I still feel the wheels hit the rail joints.» «Oh, yes, now and again we crawl along a rail's length or two,» admitted the boy, «but it's mighty slow work! I'm getting tired!» «What place i