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.

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!

Croak! Squeenk! Ribbet! After a close encounter with a mutant amphibian makes him freaky for frogs, water-shy Stink becomes a swimming success. Stink may be super smart, and Stink may be uber clever, but he’s been in the Polliwog swim class frog-ever and he still can’t bear to put his face in the water. Why would he want a geyser up his nose, on purpose? But then something weird happens: Stink starts to see frogs everywhere — in the locker room, in his boot, in the bathtub. And when a freaky blue frog licks his arm, his froggy senses start tingling! He has an urge to slurp up raisins (that look like flies). He can’t wait to play in the rain and mud. He’s a wiz at identifying frog calls. And he has become very interested in the local frog population. Could it be that Stink is turning into . . . the amazing Stink-Frog, fighter of slime? Pree-eep! Craw-awk!

Includes readers' extras and a page of stickers.

Rhyming verse and pictures introduce the numbers one to twenty.

It’s an out-of-this-world NEW collection of Stink adventures! Get a whiff of Stink as he rescues a slew of guinea pigs, saves the planet Pluto, and vies for a thumb-wrestling championship — all in one awesome set. Included are books 4 through 6: Stink and the Great Guinea Pig Express Stink: Solar System Superhero Stink and the Ultimate Thumb-Wrestling Smackdown

A group of frogs are living happily in a peaceful pond, until they discover a surprise visitor: a little pink pig. Sitting contentedly on a rock in the middle of their pond, the pig opens his mouth and says: RIBBIT! The frogs are bewildered at first, and then a bit annoyed—"What did that little pig just say?", "Does he think he's a frog?", "Is he making fun of us?" Soon the pig draws the attention of all the nearby animals; everyone is curious to know what he wants! After much guessing (and shouting) and a visit to the wise old beetle, the animals realize that perhaps the pig was not there to mock them afterall—maybe he just wanted to make new friends! But is it too late? This is a warm, funny, and beautifully illustrated story of friendship, with boisterous RIBBIT!s throughout—perfect for reading aloud.

"This is the turtle that slid into the pond and ate the snake that dropped from a branch and swallowed the fish that swam after the frog -- JUMP, FROG, JUMP!" This infectious cumulative tale will soon have the young frogs you know jumping and chanting with joy.

Shark-tastic! Stink gets to sleep with the fishes after his parents win an aquarium sleepover. But wait — what’s that lurking beyond the KEEP OUT sign? When Stink’s parents win tickets for the whole family to sleep over at the aquarium (along with Stink’s two best friends), it sounds like a science freak’s dream come true. Stink loves the sea-creature scavenger hunt (Bat ray! Brain coral!), the jellyfish light show, and the shiver of sand tiger sharks with razor-sharp teeth. And of course Stink is nuts about gross stuff, but after some spooky stories around the virtual campfire, can he manage to fall asleep thinking about the eating habits of the vampire squid? Especially Bloody Mary, the mutant, glowing Frankensquid that’s supposed to be on the prowl?