Iggy Loomis Books in Order

The Iggy Loomis books show Jennifer Allison in a much goofier mood. These are illustrated science fiction adventures for younger readers, built around family chaos, wild inventions, and the kind of trouble that starts small and gets very strange very fast. The series opens with Iggy Loomis, Superkid in Training, where Daniel Loomis is already exhausted by his much younger brother, Iggy. Then a new neighbor with a big interest in bugs shows up, a science mishap goes wrong, and Iggy ends up with mutant insect powers.

Daniel would really like a normal week.

That is part of the fun. Even though Iggy's name is on the cover, the books lean hard on the brother dynamic between careful Daniel and impulsive Iggy. Daniel wants order, privacy, and maybe five quiet minutes. Iggy is loud, messy, curious, and always one bad decision away from disaster. Because the stories stay close to that family tension, the wild science fiction never drifts too far from real kid feelings.

The setting is mostly everyday home-and-neighborhood life, which makes the absurd stuff hit harder. Bedrooms, backyards, school problems, and sibling arguments keep colliding with alien tech and weird creatures. Allison plays that contrast for laughs. One minute someone is just trying to get through the day, and the next minute there is mutated DNA, a robot problem, or a gadget that should definitely not be in a child's hands.

The second book, Iggy Loomis, a Hagfish Called Shirley, tells you a lot about the series just from the title. Iggy flushes an alien pet hagfish down the toilet, which turns a bad idea into a full rescue mission. Daniel is stuck managing the fallout while Iggy has to use his powers for something helpful, for once. The stakes stay kid-sized, being in trouble, losing a pet, making a mess you cannot hide, but the comic scale keeps getting bigger and slimier.

These books are quick, illustrated, and built for momentum. The humor is broad and physical. There are gross moments, silly names, odd inventions, and a lot of sibling bickering, but the tone does not feel mean. Under the noise, the series is interested in how brothers annoy each other, protect each other, and slowly figure out how to be on the same side.

At heart, this is a goofy science fiction series with a warm family center.

If you have a reader who likes fast chapters, cartoons, aliens, and trouble that spirals wildly, Iggy Loomis is an easy fit. Start with Iggy Loomis, Superkid in Training and follow it with Iggy Loomis, a Hagfish Called Shirley for the full mutant, slime-covered ride.