"A moving middle grade story by Anica Mrose Rissi that will appeal to readers who loved The Thing about Jellyfish and Hello, Universe, about the enduring bond between twins: Anders, who has recently died, and Lily, who has to balance her grief and confusion with a brother who isn't quite gone--and how to navigate a world that is moving forward without him."--

"Following the clues left behind, Theo and Alexander find themselves at Siren's Song Seaside Amusement Park, where they must work together to escape, stop their newfound nemesis Essa, save Wil and their friends, and find their parents."

The Sinister-Winterbottoms, twins Alexander and Theo and their older sister Wil, find themselves at a mysterious summer camp where they meet other families whose parents are missing.

Everyone in his family assumes Percy is the Septimum Genus their ancestor Merlyn prophesized, but when he attempts a forbidden spell with his twin Merlynda and vanishes through a portal, it is Merlynda who sets off to rescue her brother and discovers her true powers.

Travis Bell and Emma Lewis reunite to help the FBI capture a serial killer in Pittsburgh, and they must again turn to a notorious teenage sociopath and his twin sister for help finding the murderer.

"Bick, Beck, and the rest of the Kidds face down their nemesis, search for lost treasure, and race to solve a generations-old mystery that threatens to ruin the Kidd family name"--

Twin sisters and budding geniuses Wiki and Leen Ellison have never been apart, but this summer Leen is going to Cosmos Camp and secretly Wiki is looking forward to being alone--but when the camp founder disappears both girls are recruited to solve the mystery before his newest invention goes terribly wrong.

Nine-year-old twins Emma and Mart�in travel into a book of legends and where they must try to stop the rain god's flood.

Paralyzed by guilt, eleven-year-old John Henry must come to terms with the events surrounding his Ma's near drowning and with the help of his twin sister Hattie, learn to embrace life again.

"After escaping from Edgaren't and Dr. Jay, the Sinister-Winterbottoms and their friends arrive at Stein Manor Science Camp. They all work together to distract the friendly teenage camp director so they can explore and look for clues about where their parents might be. Meanwhile, Theo and Alexander settle on a daring plan. They know exactly where Edgaren't is going to be: coming for them, and the books. This time, they'll be ready. This time, they'll...