White Fire (A Mystery Story for Boys)

238 pp. "The story opens in a modern automobile and airplane manufacturing plant, where Johnny Thomspon, having said good-bye to adventuring, is an employee in the salvage department, spending his spare time in building himself a chummy roadster from salvaged parts. Good-bye to adventure!--No far-off land holds half the romance Johnny found in that plain-as-day automobile plant. It begins with a newly discovered process for making steel of unmatched hardness, but all in an instant there enters the problem of the mysterious "white fire," the lost formula, the crafty thief in the night--the frogman."