Between Heaven and Earth involves DJ, whose task is to take some of his grandfather's ashes and scatter them from the top of Mount Kilimanjaro. The book is about much more than just climbing a mountain, but I don't want to give any spoilers. Even if I hadn't read the dedication in the front of the book, I'd have known that Walters had climbed Kilimanjaro, because there is a sense of authenticity in his descriptions of the climb.
I don't know if you have to read the books in any particular order, but this one made sense as book one. I hope they're all being released at the same time because I'd hate to have the students waiting months for the next ones. This series will definitely be in my middle school library.
I did receive an advance copy of this book from Orca Publishers for which I am, as always, very grateful.