2.  Realistic fiction  Everything in the story revolves around a puzzle or an unusual problem to solve.  The author drops hints (clues) that might help the reader solve the mystery.  There might be distractions in story to lead the reader away from the correct solution.  The story ends with a credible, realistic solution to the mystery.

3.  Who Did It?  What Is It?  How Did It Happen?

4. Thirteen-year-old Sammy must call upon her detective skills to solve the mystery when a dog she is watching disappears from a city parade and the owner receives a ransom note. F Van

5. In small-town Michigan, twelve-year-old Zoomy and his new friend Lorrol investigate the journal found inside a mysterious box and find family secrets and a more valuable treasure, while a dangerous stranger watches and waits. F Bal

6. F Hal Is it just Chet, or is everyone acting just a little bit strange? One by one, the students at Emerson Hicky Elementary are becoming mindless goody-goodies. No one talks in class, no one complains about homework, the line to clean the chalkboard erasers is out the door! Everyone is acting like... well, a zombie. Chet loves a good nap-but this is one he's got to avoid at all costs. Can he save the school? Or will Chet and Natalie be the next in line at the chalkboard?

7. The mysterious death of an eccentric millionaire brings together an unlikely assortment of heirs who must uncover the circumstances of his death before they can claim their inheritance. F Ras

8. An African-American family moves into a house once used as a hiding place for runaway slaves and soon come to believe that their new home is possessed by the spirit of a murdered abolitionist, Dies Drear. F Ham

9. Xena and Xander Holmes have just discovered they're related to Sherlock Holmes and have inherited his unsolved casebook! The siblings set out to solve the cases their famous ancestor couldn't, starting with the mystery of a prized painting that vanished more than a hundred years ago. Can two smart twenty-first-century kids succeed where Sherlock Holmes could not? F Bar

10. F Gre Brothers Jeff and David, along with their cousin Claire, plunge into a dangerous mystery after spotting someone dumping a large bundle into the lake at Cabin Creek in the middle of the night.

11. F COL Twelve-year-old online detective school graduate Fletcher Moon--who suffers the nickname "Half Moon" because of his small stature-- helps solve crimes for classmates and others in his Irish town, but things start to go wrong when he is asked to find a reportedly stolen lock of a pop star's hair and ends up an arson suspect.