What's the largest living organism on Earth? It's not a whale or a giant sequoia—it's a fungus covering thousands of acres underground! Join the students of the London Academy of Ideas and Ingenuity on an underground adventure through the fascinating world of fungi. Shrunk to microscopic size and trapped inside a mushroom, Camila and Sebastian must navigate a living labyrinth and ride currents through a fungal highway system, all while learning how fungi break down dead matter, communicate through forests, and make life on land possible. It's a wild ride through the hidden kingdom that holds our planet together!