Chronicles of the Unicorn Kingdom: Saving King

Welcome to the first book of the series! When three young girls who are living a very normal life in Minnesota try to find a way to save their dog, they find themselves in a very not normal situation. After some odd advice from their unicorn-crazed friend, they end up two worlds away following a unicorn who can barely remember his own name. With a lot of humor, courage, and a bit of magic, they set out to save their dog but wind up leading a revolution to save a world they never knew existed.