When Beau Garnie falls through an open portal into the dwarf realm of Calorean, the last thing he expects is to be rescued by super-intelligent rats. A first class hare rider and warrior, Beau must drink a solution of Invisimin every day to survive. But someone has raided the Invisimin mines and they are almost empty. Battling dark forces and strange creatures, Beau and close friend Skyle cross Calorean to find the legendary lost mines containing the mineral on which their lives depend.
Excerpt
Beau watched in fascination as the Professor poured grey powder into a glass bowl half full with water. Then he poured in the second vial, took a glass stick and stirred the mixture. It turned clear.
The Professor emitted a series of squeaks and six paws shot into the air, each little rat trying to reach the highest. Professor Rodoric tapped a small grey eared rat on the shoulder. He clapped his little paws together and rolled up a sleeve, whiskers trembling with excitement.
The grey eared rat plunged his paw into the liquid then removed it from the mixture shaking droplets back into the bowl. His paw had vanished.
