It?s the last day of second grade for the kids in Room 2B!Everyone?s excited about Song Lee?s end-of-the-year party at Mountainside Park. Harry can?t wait for the scary rides, so when Sidney dares him to go on the newest one he quickly accepts. But then he realizes that this ride has the one and only horrible thing he hates. Will Sidney show everyone Harry?s a yellow canary? And will Harry have to live through third grade at Sid?s mercy? ?As always, Harry?s appeal is that he?s both ?gross? and vulnerable.? ?Booklist for Horrible Harry?s Secret

Another fun mystery starring Horrible Harry, and this time he's calling the shots! Harry has always loved solving mysteries, and now his friends in Room 3B have learned to love it, too. So Harry challenges them to figure out what he has hidden in his giant, old suitcase. Led by a very determined Mary, the kids take turns solving clues and piecing the mystery together. Their hunt leads them from the classroom to the library, and even to Harry's grandfather's nursing home. Will they be able to solve Harry's mystery? Or will things go horribly wrong for the novice detectives?

Doug discovers that though being Harry's best friend in Miss Mackle's second grade class isn't always easy, as Harry likes to do horrible things, it is often a lot of fun.

Harry loves gym class-except for climbing rope. He's just too afraid of heights. But then a special valentine that Song Lee made for Harry goes missing. Now Harry must climb the rope in order to prove who took the valentine. But will he be able to overcome his fear? Or will Harry's Valentine's Day end horribly?

The holiday season is here, and the kids in Room 3B are learning about all the different ways people celebrate. In addition to Christmas and Hanukkah, there's Kwanzaa, Three Kings Day, Korean New Year, and more. All the talk about holidays has everyone feeling festive. Everyone, that is, except Harry. He doesn't seem to care about the holidays, the class pet, or even the new student in class. It's clear that something is bugging Harry—but what could it be?

When the post office has donated a real mailbox to room 3B, everyone gets jobs as sorters, stackers, and carriers. ZuZu is in charge of the misaddressed, or dead, letters. But Harry discovers that a thief is using the mailbox for something other than letters. Will he sort out what?s going on? Or will Harry deliver some horribly wrong conclusions?

Harry leads a mission to place cobwebs all over school, shows the class how to make green slime, and stages a "deadly skit" that has everyone on the edge of their seats.

Horrible Harry thinks he?s the world?s second-best detective?second only to Sherlock Holmes, of course. But the rest of the kids in Room 3B aren?t so sure. So he?s determined to prove himself by solving the latest mystery at South School?how to win the new cafeteria contest. He knows the cafeteria lady is using a special mathematical code, but can he crack the code before his classmate Mary tattles on him again? Or will the case go cold right before Harry?s eyes?

With Valentine's Day right around the corner, Harry hatches one of his bright ideas. He's going to stage a wedding—to Song Lee!

The most comprehensive look at our relationship with Mars—yesterday, today, and tomorrow—through history, archival images, pop culture ephemera, and interviews with NASA scientists, for fans of Andy Weir and For All Mankind. Mars has been a source of fascination and speculation ever since the ancient Egyptians observed its blood-red hue and named it for their god of war and plague. But it wasn't until the 19th century when “canals” were observed on the surface of the Red Planet, suggesting the presence of water, that scientists, novelists, filmmakers, and entrepreneurs became obsessed with the question of whether there’s life on Mars. Since then, Mars has fully invaded pop culture, inspiring its own day of the week (Tuesday), an iconic Looney Tunes character, and many novels and movies, from Ray Bradbury’s Martian Chronicles to The Martian. It’s this cultural familiarity with the fourth planet that continues to inspire advancements in Mars exploration, from NASA’s launch of the Mars rover Perseverance to Elon Musk’s quest to launch a manned mission to Mars through SpaceX by 2024. Perhaps, one day, we’ll be able to answer the questions our ancestors asked when they looked up at the night sky millennia ago.