"Ethan and Emily Tuttle embark on their first summer camp adventure where competing teams turn into rivals, but Chief Ron helps the twins and their teammates learn the dangers of aggression, revenge, and blowback-and why peace and friendship are important!"-- cover.

"When a gruesome murder is discovered at The Osthorne Academy of Young Mages, where her estranged twin sister teaches Theoretical Magic, reluctant detective Ivy Gamble is pulled into the world of untold power and dangerous secrets. She will have to find a murderer and reclaim her sister--without losing herself" --

"Joachim von Hartmann was born and raised in Buenos Aires by his loving German mother, inseparable from his identical twin. When Joachim moves to Paris with his mother in his late teens, his twin stays behind and enters a dark world. Meanwhile, Joachim begins training to be a butler, fascinated by the precision and intense demands, and goes on to work in some of the grandest homes in England. His brother never reappears. Olivia White has given ten...

Fifteen-year-old twins Sophie and Josh Newman continue their magical training in Paris with Nicholas Flamel, Scatty, and the Comte de Sant Germaine, pursued by Doctor Dee and the immortal Niccolo Machiavelli.

In a horrific automobile-swan accident in front of the Rotterdam Zoo, two women die and a third, Alba, loses her leg. The two widowers, twin zoologists Oliver and Oswald, fixate on their wives' bodies, and slowly become obsessed with evolution and decomposition-- even going as far as to meticulously craft exquisitely morbid time-lapsed films of decaying creatures. The plot thickens when a mad surgeon schemes to use Alba as a subject in his experiments...

This fourth edition of the book that introduced readers to the revolutionary, nutritionally based prenatal program for the growing number of women pregnant with multiples is now revised and expanded for an era when multiple births are on the rise and includes updated diet and exercise recommendations for the postpartum mother as well as twenty-five new recipes.

"Do your kids know how the free market works? Ethan and Emily Tuttle have grown up taking for granted the many things they use: clothes, cars, homes, backpacks--even something as simple as a pencil. In this fun adventure to an amazing factory, the twins learn why even the common pencil is a miracle--one that nobody actually knows how to make--and how the process by which it is made is the key to prosperity in our modern age. Based on the classic essay...

Twins Axl and Ivan, with Sid as their driver, make a late-night fast-food run for a high school theater crew but return to discover that aliens have made copies of everything.

"Nicole and Nelson are twins with psychic powers. On the first day of school, everyone is talking about the recent vandalism at school. Nicole and Nelson decide to to "undercover" to find the culprit. The twins get child genius George - and his high tech gadgets - to help them solve the mystery. With the clock ticking, the kids race to break the case open before the big school board meeting where they must reveal the true person responsible for the...

Devious twins Edgar and Ellen scheme to thwart the mayor's tourism initiative, which, if successful, would destroy the town junkyard--the twins' favorite playground, foraging spot, and home to their beloved carnivorous plant.