Ryan and Shelley Dumpsters are twins, dead twins. They died on bad terms with their father. Max has returned to reunite them.
History has shown story after story of dogs traveling great distances to return to their human families. Max take this to the extreme. He returns from The Land of Mist, the Between World. Wendy Dee Winkelmann meets the extraordinary yellow lab with the big brown eyes. She soon learns this canine has a quest, and Wendy, Finger Bones, and her two best friends have their next ghost job. (I will add more later.)