Surprise! Mad scientist Petty Potts is the new counselor at Josh and Danny's summer camp. And she just happens to be hiding some bottles of her extraordinary serum inside her raincoat. Now she can turn the boys into amphibians!Josh and Danny vow to stay away from Petty's S.W.I.T.C.H. formula, but when their new friend Charlie gets into trouble, they know there's only one option: find Petty and get hopping!

Surprise! Mad scientist Petty Potts is the new counselor at Josh and Danny's summer camp. And she just happens to be hiding some bottles of her extraordinary serum inside her raincoat. Now she can turn the boys into amphibians! Josh and Danny vow to stay away from Petty's S.W.I.T.C.H. formula, but when their new friend Charlie gets into trouble, they know there's only one option: find Petty and get hopping!

After a close encounter with a mutant amphibian makes him freaky for frogs, water-shy Stink becomes a swimming success after being in the Polliwog swim class frog-ever.

Includes readers' extras and a page of stickers.

In astonishing and unflinching detail, a noted science journalist explains how Earth's climate will be impacted with every degree of increase in global warming--and what can be done about it now.

The new face of big evil is a little . . . small. Dastardly deeds aren’t exactly the first things that come to mind when one hears the name “Clementine,” but as the sole heir of the infamous Dark Lord Elithor, twelve-year-old Clementine Morcerous has been groomed since birth to be the best (worst?) Evil Overlord she can be. But everything changes the day her father is cursed by a mysterious rival. Now, Clementine must not only search for a way to break the curse, but also take on the full responsibilities of the Dark Lord. But when it’s time for her to perform dastardly deeds against the townspeople—including her brand-new friends—she begins to question her father’s code of good and evil. What if the Dark Lord Clementine doesn’t want to be a dark lord after all?

Exciting new theories in neuroscience, psychology, and artificial intelligence are revealing minds like ours as predictive minds, forever trying to guess the incoming streams of sensory stimulation before they arrive. In this up-to-the-minute treatment, philosopher and cognitive scientist Andy Clark explores new ways of thinking about perception, action, and the embodied mind.

Quentin Jacobson has spent a lifetime loving Margo Roth Spiegelman from afar. So when she cracks open a window and climbs into his life - dressed like a ninja and summoning him for an ingenious campaign of revenge - he follows. After their all-nighter ends, Q arrives at school to discover that Margo has disappeared.

After second-grader Stink gets an unsatisfactory grade in physical education, his parents tell him he must play a sport and so he masters thumb wrestling, as seen on a sports channel.

The author of Punished by Rewards and The Schools Our Children Deserve returns with a provocative challenge to the conventional ways of raising children. Kohn argues that all children have the need to be loved unconditionally, yet conventional approaches to parenting, such as punishment and reward, teach children that they are loved only when they please and impress parents. Kohn cites powerful research detailing the damage this can cause. Unconditional Parenting pushes parents to question their ideas of parenting and offers practical solutions to problems.