THE BLACK THUMB MYSTERY (A Ken Holt Mystery). Bruce Campbell, Grosset & Dunlap Publishers, New York, 1950.
 
Juvenile Fiction - Mystery
Book #3; The Ken Holt Mystery Stories
 
Ken and Sandy suspect that an innocent man, Frank Brown, was convicted of aiding a bank robbery. In fact, they gave testimony that helped convict the man. But, they think the man was framed, and they believe that the main reason for the robbery was to frame the poor man. Ken and Sandy are determined to prove he is innocent.
 
Secure binding with clean pages, just mild cover wear, and a light spine shift. The jacket is heavily foxed at the rear with several edge tears. About 7-1/2 x 5-1/4 with 216 pages.