The Hardy Boys, brothers Frank and Joe Hardy, are fictional characters who appear in several mystery series for children and teens. The series revolves around teenagers who are amateur sleuths, solving cases that stumped their adult counterparts.
The Flickering Torch Mystery is Volume 22 in the original The Hardy Boys Mystery Series published by Grosset and Dunlap.
This book was written originally in 1943. Between 1959 and 1973 the first 38 volumes of this series were systematically revised. The original version of this book was rewritten in 1971 resulting in two different stories with the same title.