The following books are currently available to pre-order:
The Falcon File by Daniel Wyatt – Kindle (17 September)
The Egyptian Sequence by Moyra Caldecott – Kindle (1 October)
The dates refer to the date of publication — all the books and formats listed here are available to pre-order now. It helps the books a lot if they are pre-ordered because they start out higher in the Amazon rankings.
The links will take you to your most geographically appropriate Amazon store.