The Genius Factor Books in Order

Inventor Nate makes his cat enormous and invisible during his Friday the thirteenth experiments. With friend Delphine, he must stop the animal from destroying their town while a criminal tea society interferes with their increasingly desperate inventions.

Nate faces threats from a criminal tea society planning to release robotic bees unless he joins them, while another group seeks his allegiance. Delphine and his inventions become essential as he suspects a spy at school.

Hiding his inventions around town to evade his enemies creates Nate’s most disastrous Friday the thirteenth yet. Delphine helps him confront escaped animals, multiplying toads, and relentless lightning storms while the criminal tea society continues its pursuit.