Yukon Mystery (original title: Trail North to Danger) by Joseph H. Gage, T82, 1st TAB (later known as Scholastic Books) paperback printing; 1957, 218 pages. Illustrated by Dick Priest.
DESCRIPTION: “Who stole Uncle Paul’s letter hinting a priceless ore find? Why did young Steve and his Dad get roughed up in Fairbanks? And why should a miner with good ears wear a hearing device? Did a secret gang make the bush search plane crash?
Against hopeless odds a boy and his father try to pick up a cold trail in the Arctic. Alone in a pitch-black mine Steve finally well, that’s for the reader of this chiller-diller to discover.” (from the back cover)