A girl, Zoey, and her cat, Sassafras use science experiments to help a monster with a problem.

"What if the pandemic you thought would kill you made you more intelligent instead? In the Amazon jungle, a disease is spreading. To those who survive, it grants enhanced communication, memory, and pattern recognition. But the miracle may be the sinister survival mechanism of a fungal organism, manipulating the infected into serving it. Paul Johns, a mycologist, is convinced the fungal host is the next stage of human evolution, while his brother Neil,...

"From award-winning author Benjamin Percy comes the second novel in his grippingly original sci-fi series, The Comet Cycle, in which a passing comet has caused irreversible change to the growth of fungi, spawning a dangerous, invasive species in the Pacific Northwest that threatens to control the lives of humans and animals alike"--

While the students are home for spring vacation, the fungus they are growing in their classroom grows and grows and takes over the entire school.

A mold problem disrupts things at Nathan's school and his class is forced to share a space with first and eighth graders including Rodney the bully's older brother. Meanwhile, Nathan notices that a putrid smell is following him around and tries to discover its source.

"Cuando un monstruo del bosque llega buscando ayuda por algo que lo avergüenza mucho. Zoé está segura de que será un problema fácil de resolver. Per sus dos primeros intentos de ayudarlo fallan ¡y termina a cargo de un monstruo llorón!"-- A girl, Zoey, and her cat, Sassafras use science experiments to help a monster with a problem.-- A forest monster shows up looking for help with an embarrassing problem and Zoey is sure it will be a simple...