Book 1

Chameleon Wore Chartreuse

by Bruce Hale

Published 1 April 2000
When hired by a fellow fourth-grader to find her missing brother, Chet Gecko uncovers a plot involving a Gila monster's revenge upon the school football team.

Book 2

Mystery of Mr. Nice

by Bruce Hale

Published 1 August 2000
When the principal of his school begins acting nice to him, Chet Gecko realizes that he is an imposter and so sets out to find the real one.

Book 3

Farewell, My Lunchbag

by Bruce Hale

Published 1 April 2001
When fourth-grade private eye Chet Gecko is called to catch someone who is stealing food from the school cafeteria, he finds himself framed for the crime.

Book 4

Big Nap

by Bruce Hale

Published 1 January 2001

Book 5

Hamster of the Baskervilles

by Bruce Hale

Published 1 April 2002
Something is trashing the classrooms at Emerson Hicky Elementary School, and sixth-grade private eye Chet Gecko sets out to find the creature that's responsible.

Book 6

This Gum for Hire

by Bruce Hale

Published 1 September 2002
To save his own skin, private eye Chet Gecko sets out to solve the mystery of Emerson Hicky Elementary School's disappearing football players.

Book 7

Malted Falcon

by Bruce Hale

Published 1 April 2003
Chet Gecko and his partner Natalie try to find a missing valentine and the winning ticket to a fantastic dessert.

Book 8

Trouble Is My Beeswax

by Bruce Hale

Published 1 September 2003
Chet and his partner, Natalie Attired, investigate a cheating ring at Emerson Hicky Elementary school.

Book 9

Give My Regrets to Broadway

by Bruce Hale

Published 1 April 2004
It's no mystery: Chet Gecko can't sing. He can't dance. He can't act. Heck, he can't even act normal. So why would he take the lead in Mr. Ratnose's musical version of Shakespeare's Omlet, Prince of Denver? A new case, naturally. The original leading man has disappeared, and something smells rotten in the realm of Ratnose. Did the third-act lip-lock with Shirley Chameleon scare him away? Or is foul play afoot? One thing's for certain: This mystery won't be over until the fat gecko--er, lady--sings.

Book 10

Murder, My Tweet

by Bruce Hale

Published 1 January 2004
Right in the middle of a run-of-the-mill case, the powers that be finger Chet's fine-feathered partner, Natalie Attired, as a no-goodnik blackmailer and boot her out of Emerson Hicky quicker than you can say, "Boot her out of Emerson Hicky."

Chet, of course, tackles the case for free. Mess with his partner, mess with--well, somebody. (Natalie's the brains of the outfit.) But just when Chet thinks he might clear her name, Natalie disappears, leaving behind a reddish smear that looks kind of like cherry ladybug jam. . . . Is it murder, or something serious?


Book 15

Dial M for Mongoose

by Bruce Hale

Published 1 January 2009
The pun-slinging, crime-solving Chet Gecko is at it again in this new mystery of fire and stink!