The Xyz Mystery — George S. Haines

It is now 1939, two years after Sam and Howie solved the GIANT HORSESHOE MYSTERY. Sam,
age 13, and Howie, age 12, are now involved in another hazardous adventure. They explore an
empty, dilapidated house on their grandfathers farm. Under the creaky stairs they fi nd three metal
tools with the letters X Y Z forged on the ends.
Beneath the house, in a secret underground room and tunnel they discover a skeleton holding a
metal box. This box, plus two others, contains clues that perhaps will help Sam and Howie as they
attempt to solve the X Y Z mystery.
When they follow the clues Sam and Howie discover the remains of an illegal moonshine
operation. Also, they learn about a historic naval map stolen from a museum in England. Dr. I.
Yanky, who serves as a dentist in a prison, is very interested in this map. Two men dressed in black
constantly harass Sam and Howie as they try to solve the X Y Z mystery.
Follow Sam and Howie on this exciting journey. Will they be able to follow the clues and fi nd the
solution to the X Y Z mystery before the two men dressed in black? What about the strange Dr.
I. Yanky? Will the priceless naval map be found? You wont know the answers to these intriguing
questions until you read every chapter.