Thomas Lockhaven

• Jan-2017
• / Fantasy
• 

Trapped in an evil demon's labyrinth, can Eevie and Tommy solve all the puzzles to escape with their lives?"This story reminds me of the books that began my love of reading in the first place. This is definitely n...

• Nov-2017
• / Mystery
• 

Chasing answers to a dangerous mystery, in a magical new world, can Eevie and Tommy solve the deadly puzzles and make it out alive?

The Quest Chasers series, which debuted with the fun, fast, and fantastical Deadly Cavern, returns with the...

• Feb-2018
• / Fantasy
• 

Chasing answers to a dangerous mystery, in a magical new world, can Eevie and Tommy solve the deadly puzzles and make it out alive?

The Quest Chasers series, which debuted with the fun, fast, and fantastical Deadly Cavern, returns with the e...

• Mar-2018
• / General Fiction
• 

Ruthless international diamond smugglers think they’ve gotten away with the perfect crime, stealing the famous Ramesses diamonds from the Hancock Museum of Archeology. Until…

Twelve-year olds Ava and Carol explode onto the scene. Burst...

• Nov-2018
• / General Fiction
• 

It’s Christmas -- so why not accept a dare to explore a creepy old haunted house?

On this third book of the Ava & Carol Detective Agency series, fearless best friends Ava and Carol set out to prove that the Butcher house isn’t hau...

• Nov-2018
• / General Fiction
• 

Which would you choose?  Helping an old man that’s being kidnapped, or endless plates of delicious pasta?

On this second book of the Ava & Carol Detective Agency series, Ava and Carol were about to take a stroll through Italy, when ...

• Feb-2019
• / General Fiction
• 

When a famous show dog “Mr. Binxley” is stolen, Ava and Carol, twelve-year-old detectives, jump at the opportunity to track down the dognapper.

A strand of hair, a giant shoe-print �" the girls begin putting together a series of c...

• Feb-2019
• / General Fiction
• 

It’s Christmas -- so why not accept a dare to explore a creepy old haunted house? Fearless best friends Ava and Carol set out to prove that the Butcher house isn’t haunted. Only, Carol is pretty sure she saw something inside one of the windows...

• Oct-2019
• / Historical
• 

A famous Van Gogh painting has been stolen from the National Gallery of Art. Or was it? Why risk such a brazen robbery in broad daylight? Was the theft a ruse for something more nefarious?

Join super sleuths Ava and Carol as they unrav...

• Nov-2019
• / Historical
• 

What could be more thrilling than solving a hundred-year crime? Ava and Carol enter a contest where the stakes are high. Find the famed Irish Crown Jewels and win a $10,000 prize. If anyone can locate these priceless treasures, it’s Ava and Car...

• May-2020
• / General Fiction
• 

The Amazon Jungle is dangerous enough, filled with venomous snakes, poisonous insects and man-eating caiman. Add to that, a local legend of a Devil that can steal your soul just by looking into its eyes, and a group of smugglers bent on wreaking havo...

• Oct-2020
• / General Fiction
• 

Lost in time and at sea: it's the pirate's life for me!Calista Chase knows that time can change a lot of things. For one, Calista's grandmother Martha is a great archaeologist with a big reputation-but all that changes quickly when the entire town of...

• Oct-2020
• / General Fiction
• 

Was Alice Scarlett a witch? Did she leave behind a secret message that revealed the location of a vast treasure?When Ava and Carol discover an ancient locket, the townspeople of Tempest, Maine begin to act strangely. The girls begin to investigate th...

• Apr-2022
• / Fantasy
• 

A hidden world. An evil queen. A diabolical plan to destroy humankind. A page-turning magical adventure perfect for all ages. Now enjoyed by over 10,000 middle grade fantasy readers.Eevie, Tommy and Drew have ventured to the world of Equis where Quee...

• Feb-2023
• / Historical
• 

Join over 20,000 children, teens and adults who've read the Ava & Carol Detective Agency series.Ava and Carol, teen detectives, can find a mystery just about anywhere, so why should Cairo, Egypt be any different?While Ava's mom, a world-renowned jour...

• Nov-2023
• / General Fiction
• 

Prepare to be captivated by a riveting tale of young detectives and a cold case that refuses to stay buried.In Case File 2: Karla Jenkins, Ava, Carol, and Derik-the brilliant minds behind a True Crime podcast-receive an anonymous plea to reexamin...

• Nov-2023
• / General Fiction
• 

A Christmas whodunnit for all ages!Join Ava, Carol, and Derik for a thrilling Christmas mystery! An anonymous tip leads the intrepid sleuths to investigate the decade-old murder of Margarette Tooms. The trio uncovers a web of secrets around her death...

• Nov-2023
• / General Fiction
• 

Move over Santa! This year, Ava and Carol are figuring out who's naughty or nice.There's a time of year that's full of cheer-but this December, not everything is quite so merry for Ava and Carol Detective Agency. For their holiday house-sitting gig h...

• Nov-2023
• / General Fiction
• 

Prepare to be captivated by a riveting tale of young detectives and a cold case that refuses to stay buried.In Case File 2: Karla Jenkins, Ava, Carol, and Derik-the brilliant minds behind a True Crime podcast-receive an anonymous plea to reexamine th...

• Sep-2024
• / General Fiction
• 

This edition features black-and-white illustrations.Three teens, a missing parrot, and a treasure hunt-welcome to the quirky world of Ripley Kool and the Investigators!Ripley, Gilly, and Alexis are called upon by Mrs. Cornthumper, an elderly woman wi...

• Nov-2024
• / General Fiction
• 

Crime podcasters, teen detectives Ava, Carol, and Derik are about to take their most perplexing murder mystery yet, a 100-year-old cold case.The intrepid detectives dive into another thrilling cold case for their podcast, this time investigating the ...

• Nov-2024
• / General Fiction
• 

This edition features black-and-white illustrations.A missing dinosaur skeleton, a museum on lockdown, and three teen detectives determined to crack the case-welcome to The Vanishing Raptor!Teen detectives Ripley, Gilly, and Alexis are eager to witne...

• Dec-2024
• / General Fiction
• 

This edition features black-and-white illustrations.A Christmas party, a missing ruby, and a house full of suspects-Ripley, Gilly, and Alexis are on the case in A Rudolph Christmas Mystery!Alexis has just launched her French restaurant, Le Poof, serv...

• / General Fiction
• 

Unleash your inner genius with Team Kaboom in this electrifying middle school adventure!They may be just middle schoolers, but Aiko, Dex, Emily, and Jayden are not your average kids. As Team Kaboom, they've conquered the Mastermind Competition, but t...