Megan is a 13-year-old teenage girl, who realizes that she has psychic powers that others do not have. At first, she tried to talk to her mother about them but with disastrous consequences, so she learned to keep quiet about them.
However, some people do offer to help, and an animal showed a special friendship, but they were not "alive" in the normal sense of the word. They had passed on.
Megan has three such friends: Wacinhinsha, her Spirit Guide, who had been Sioux in his last life on Earth; her maternal grandfather, Gramps, and a huge Siberian tiger called Grrr.
Wacinhinsha is extremely knowledgeable in all things spiritual, psychic, and paranormal; her grandfather is a novice "dead person" and Grrr can only speak Tiger, as one might imagine, and most of that, of course, is unintelligible to humans.
In this book, Megan meets an old lady in a thunderstorm who turns out to be a neighbor - a lonely person who lives on her own. They become friends and affect each other's lives for the better, irrevocably.