Illustrations and rhyming text reveal the Mighty Underpants War as the true reason dinosaurs are extinct.

Best friends Elephant and Piggie decide that they will try to surprise each other, with unexpected results.

"SNOW DAY! Duck is super excited and can't wait to play in the snow with his best friend, Bear. Bear isn't excited about playing with Duck, or going out in the snow. As always, he'd rather stay inside, where it's warm and cozy. But can Bear resist his persistent friend? If so, who will play in the snow with poor Duck?!"--Amazon.com

"Gerald es cuidadoso. Piggie no lo es. Piggie no puede dejar de sonreír. Gerald puede. A Gerald le preocupa que Piggie no tenga que hacerlo. Gerald y Piggie son los mejores amigos. ¡En me rompí el trompa! Gerald le cuenta a Piggie la larga y loca historia de romper su baúl. ¿Terminará Piggie con una larga y loca historia propia?"--Libreriainternacional.com Gerald the elephant tells his best friend Piggie a long, crazy story about how he broke...

There is a legend that if the ravens at the Tower of London ever leave then Britain will fall, so when somebody steals the birds, the Queen calls for Mac B. to find the thief and retrieve them--a mission that takes him to Iceland, where he encounters secret submarines, hungry polar bears, and his arch-nemesis from the KGB.

"Owl has a red balloon and Monkey wants it, but Owl does not want to share. So Monkey tries to find something to trade for the balloon"--

A little boy offers advice about what not to give a mom on Mother's Day by providing examples of gifts that would be suitable for animal mothers.

Piggie introduces his reluctant friend, Gerald the elephant, to the wonderful world of pretend.

One day, Mac (smartest boy in his class in a small town in California) receives a telephone call from the Queen of England, recruiting him to find the crown jewels (well, actually just the Coronation Spoon) and so Mac embarks on his first adventure as a secret agent--with the assurance that the Queen will give him a note excusing him from school.