When Arfy finds a homeless kitten, he writes letters to prospective owners, hoping to find the perfect home for his new friend.

When Alexander moves to Stermont, he finds a creepy notebook full of monster drawings. The monsters inside are real, and it's up to the members of the Super Secret Monster Patrol - or the S.S.M.P. - to stop them. Can Alexander and his friends, Rip and Nikki, protect the town from balloon goons, tunnel fish, and shadow smashers?This collection includes books #1-3--Rise of the Balloon Goons, Day of the Night Crawlers, and Attack of the Shadow Smashers!...

It is time for the Stermont Derby, a race around downtown Stermont in homemade vehicles, and Alexander, Nikki, and Rip are planning to compete, but so is a new monster, a Speedah-cheetah--and in addition to a diet of rotten eggs it plans on eating the race losers, especially the members of the Super Secret Monster Patrol.

Alexander's class is going on a sleepover at the Stermont Museum, but something is stealing bright, shiny objects from all over town, including the museum's treasured Ruby Scorpion, and on the night of the visit the young monster hunters finally confront the town's newest monster--a warrior covered entirely by bubble-wrap.

When Alexander and his friends find a very large footprint and piles of candy everywhere, they realize the school is being threatened by a Pi©łata-saurus Rex, a sweet-tasting monster who likes to smash things--and they find that the solution may be as near as a broken ant farm.

It is a very hot summer in Stermont, and Alexander and his friends are at Camp Gloamy in the mountains, but even here there are monsters--specifically zombie snowmen called snombies who want to freeze the young monster-hunters.

It has been several months since monsters last plagued the town of Stermont, and frankly Alexander Bopp (leader of the Super Secret Monster Patrol) is bored, and misses his friends Rip (immersed in video games) and Nikki (soccer camp), so when his father signs him up for a summer maker program at the library he is happy to go--but soon he starts finding weird old-timey objects, and monster trading cards, and it starts to look like maybe monsters are...

Alexander keeps seeing monsters he has previously conquered, but every time he gets close they disappear and his friends are beginning to think he is delusional--but when one of their teachers turns into a blob of super-goop right before their eyes they realize the team is dealing with a shape-shifter, and it is after the Notebook of Doom.

It is the first day of the brand-new Stermont Elementary School, but everything electrical seems to be going haywire, and it looks like strange green lightning bugs are draining off the power--but when they see green lightning in a clear blue sky, Alexander and his friends know there must be a monster involved.