From the kickstarter:
You're in the middle of a major campaign. It's long and involved, and takes tons of prep. Now you're just hours away from your next session, and you don't have anything ready. Fear not! When Professor Humbert Drumsley shows up at the table, there's a problem that your players need to solve. Or Humbert is the problem, whatever works. At any rate, it will keep the characters busy for the night!
Professor Humbert Drumsley: 5e Adventure Codex is a collection of short adventures compatible with the latest edition of the world's oldest fantasy roleplaying system. Not only are these adventures ideal for low level characters, they're designed to be fun, fast-paced, and light-hearted.
Humbert is the stereotypical bumbling mage, perfect for introducing early in a campaign. He leans hard into the familiar fantasy tropes, and he brings along his special brand of kooky arcane accidents and unrelenting eldritch errors. You can use him to provide comic relief between major adventures, or to introduce your own quest hooks and plot points.