Stuart Gibbs

In 30 BCE, Cleopatra and her husband, Marc Antony, lost their war against Octavian for control of the Egyptian Empire. However, Cleopatra knew Octavian was really after the mysterious item that was the source of all her wealth and influence, so she hid it before committing suicide. She left a series of devious clues behind for her children to find it, but they were lost to history--until now...Charlie must fight for her life against ruthless enemies,...

In Paris with his parents to sell family heirlooms, fourteen-year-old Greg Rich suddenly finds himself four hundred years in the past, and is aided by boys who will one day be known as "The Three Musketeers."

"Dashiell Gibson, who lives on Moon Base Alpha, has to solve a murder of one of the moon's most prominent doctors"--

In 2041 on Moon Base Alpha, thirteen-year-old Dash must solve the mystery of how Lars was poisoned before the base loses oxygen, forcing the colonists to return to Earth.

Prince Ruprecht is VERY UPSET that knights-in-training, Tim and Belinda, have thwarted his plans and ruined his chances with Princess Grace. And so, to get even, he has kidnapped the princess and trapped her in the most complicated, dangerous, complex, dastardly, biggest (okay you get the point)…and scariest maze in all the world! Now it’s up to Tim, Belinda, Ferkle, and Rover to fend off menacing beasts (like the minotaur), conquer treacherous...

Twelve-year-old Teddy Fitzroy is the prime suspect when FunJungle's newly-acquired koala goes missing, thanks to a prank staged by middle school bully Vance Jessup.

When the Musketeers pursue the dangerous Michel Dinicoeur to Spain, they are ambushed at every turn, causing them to suspect that there may be a traitor within their own ranks.

Twelve-year-old Ben Ripley leaves his public middle school to attend the CIA's highly secretive Espionage Academy, which everyone is told is an elite science school.

Top-secret training continues into summer for aspiring spy Ben Ripley--and so does the danger.

Bestselling author Chris Grabenstein and the Mystery Writers of America bring together twenty peerless puzzles-from bestselling authors such as Peter Lerangis, Stuart Gibbs, Lauren Magaziner, Kate Milford, and, of course, Grabenstein himself-in an anthology of mystery short stories that invite readers to try to unravel the riddles themselves. From tales of hapless superheroes and stolen squirrel monkeys to murderous triplets and haunted basements,...