Mac Barnett

When Triangle breaks the rule about not hiding behind the waterfall while playing hide-and-seek with Circle and Square, Circle must rescue him.

"When Santa arrives at a child's house on Christmas Eve, does he go down the chimney feetfirst or headfirst? What if he gets stuck? What if there's no chimney? Maybe he slides under the door, as thin as a piece of paper? Or is it possible he pours himself through the faucet? What happens once he's inside? Whether it's shape-shifting or impromptu laundry use, Mac Barnett's iconic talent for earnest deadpan humor and Jon Klassen's irresistibly funny...

Summoned by the Queen of England to save the world once again, trusty kid spy Mac B. navigates secret tunnels beneath the Berlin Wall to retrieve cheat codes from an adversarial scientist only to find himself trapped in East Germany.

In 1989 someone is threatening to steal the crown jewels, so the Queen of England summons Mac B. to England to protect them--and when they are stolen from a locked dungeon cell, where Mac and Holcroft, one of the warders, are supposed to be guarding them, it is up to Mac to figure out how they were stolen, and whether the thief is the descendant of an Irish soldier-of-fortune who tried to steal them in 1671, or someone else entirely.

When a child is too full of questions about the world to go to sleep, her patient father offers up increasingly creative responses to his child's nighttime wonderings.

When Jack finds himself on the naughty list, he worries that Santa will bring him coal. But Jack wants presents -- lots of them. Will Jack be able to prove to Santa that he's not so bad after all?

When master prankster Miles Murphy moves to sleepy Yawnee Valley, he challenges the local mystery prankster in an epic battle of tricks, but soon the two join forces to pull off the biggest prank ever seen.

Twelve-year-old Steve is investigating a diamond heist but the case suddenly changes when the author of the Bailey Brothers detective novels writes him a letter to say that he fears for his life.

"Something terrible is happening in the skies! Rats are eating the MOON! There's only ONE hero for the job, a bold and fearsome beast bioengineered in a secret lab to be the moon's savior and Earth's last hope! And that hero is ... a cat. A cat who will be blasted into space! Accompanied by the imperious Moon Queen and LOZ 4000, a toenail clipping robot, the First Cat in Space journeys across a fantastic lunar landscape in a quest to save the world....

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.