Below is a list of the places you can find the Sphereshifters eBook(s). Currently there is one Sphereshifters eBook, but more planned. For a reference on release dates, a new one will be released every time there are 13 story sections(so approximately January, April, July, and October, give or take a month or so for formatting/editing).
Sphereshifters: Aleph (Story Arcs 1, 2) -
*Baker-Taylor is a eBook library, meaning that if your local library has an eBook borrowing program, they probably use Baker-Taylor to power it. This means that while I can’f offer you a definitive link for the book, you should be able to find the book at your local libraries website if they have an eBook borrowing program. If not, ask them if they can get it! They usually will stock a book if there are requests for it.
**Sony has received the book through Smashwords distribution but as of now(6/29/12) it is not currently on their site. It should be up soon, though.