Karissa Vacker

Have you ever wondered how to measure your pizza, or how much ice cream is in your ice-cream cone? Basic principles of geometry, including measuring two-dimensional and three-dimensional shapes, attributes of various shapes, and formulas for finding area and volume, are explored through informative and engaging text in this newest addition to the How Do series. The How Do series is a great introduction to various STEM topics, each written in a format...

657 days ago Meg's British father left their home in France to fight the Nazis, leaving some codes in a jar for her to decipher, and Meg and her French mother moved to the Perche, a region in France near Normandy known for its forests; now Meg watches the German soldiers in town, and sometimes carries messages for the French resistance--but suddenly things have gotten much more dangerous: there is a wounded British officer hiding in her grandmother's...

A ton of copycat gossip apps have popped up since Simon died, but in the year since the Bayview four were cleared of his shocking death, no one's been able to fill the gossip void quite like he could. The problem is no one has the facts. Until now. This time it's not an app, though--it's a game. Truth or Dare. Phoebe's the first target. If you choose not to play, it's a truth. And hers is dark. Then comes Maeve and she should know better--always choose...

New friends and a mystery help Aven, thirteen, adjust to middle school and life at a dying western theme park in a new state, where her being born armless presents many challenges.

Annie Marlow has been through the worst. Rocked by tragedy, she heads to the one place that makes her happy: Oceanside in the Pacific Northwest, the destination of many family vacations when Annie was a teenager. Once there, Annie begins to restore her broken spirit, thanks in part to the folks she meets: a local painter, Keaton, whose large frame is equal to his big heart--and who helps Annie fix up her rental cottage by the sea; Mellie, the reclusive,...

Everyone from Wakarusa, Indiana, remembers the infamous case of January Jacobs, who was discovered in a ditch hours after her family awoke to find her gone. Margot Davies was six at the time, the same age as January-and they were next-door neighbors. In the twenty years since, Margot has grown up, moved away, become a big-city journalist. But she's always been haunted by the fear that it could've been her. And the worst part is, January's killer has...

A sharp and twisty exploration of female friendship from the New York Times bestselling author of A Flicker in the Dark and All the Dangerous Things. Lucy Sharpe is larger than life. Magnetic, addictive. Bold and dangerous. Especially for Margot, who meets Lucy at the end of their freshman year at a liberal arts college in South Carolina. Margot is the shy one, the careful one, always the sidekick and never the center of attention. But when Lucy singles...

A woman attends her ex-boyfriend's funeral only to discover that his family thinks they're still together, and decides to play the grieving girlfriend all the while falling in love with his best friend.

The author of What Lies in the Woods returns with a novel about three sisters, two murders, and too many secrets to count. Emma hasn't told her husband much about her past. He knows her parents are dead and she hasn't spoken to her sisters in years. Then they lose their apartment, her husband gets laid off, and Emma discovers she's pregnant--right as the bank account slips into the red. That's when Emma confesses that she has one more asset: her parents'...

"Sally Grissom is a top secret service agent in charge of the Presidential Protection team. She knows that something is amiss when she is summoned to a private meeting with the President and his Chief of Staff without any witnesses. But she couldn't have predicted that she'd be forced to take on an investigation surrounding the mysterious disappearance of the First Lady with strict orders to keep it a secret. The First Lady's absence comes in the...