I definitely like this series. I read the second, Please Don't Tell My Parents I Blew Up the Moon, by Richard Roberts, right after I posted the review for the first. I stayed up pretty late reading it, so I shouldn't have woken up as early as I did.
This book finds Penny and her friends, The Inscrutable Machine (an awesome name for a villain team) end up going to Jupiter and its moons to figure out the source of a signal picked up by one of the villains they meet in the first book. There they meet an interesting cast of characters. Somehow, a group of humans ended up being brought out to colonize some of the moons of Jupiter. The new humans in the story are joined by a group of Automoton, who control the humans' lives, and also by a species of alien that takes over the humans by infecting them like parasites. Penny still wants to become a hero, rather than a villain, but it seems everything she does works in such a way that she still appears to be a villain.
As I said, I really am getting a kick out of this series. The main character the friends interact with in this book is a nicely flawed, fellow mad scientist. Remmy has two brothers with differing ideas of how to save the other Jovian colonists from the robots and the parasites. They're both older brothers who think of Remmy as a pesky younger sibling. Remmy has a story arc I hope Roberts revisits in later books.