Cassidy is an important character in Wander Home. Wander Home is an afterlife fantasy, a family drama, and a mystery, with romance elements as well. (Whew.)
In the book's vision of the afterlife, you can be any age at any moment, depending on your mood and what you wish to do. You can also visit places you and others remember, and relive memories.
Cassidy died in early childhood, but assumes a range of ages in the afterlife. She is often a teenager.