Horn-Horn by ADT McLellan - one of those few books that you will go from the last page immediately back to the first page. Like The Sixth Sense, reading it a second time is like reading it for the first time again. It's a completely different story once all of the twists are revealed.

The Sirkkusaga series by Kyt Wright, I've read both, the titular first and the sequel, Sirki's Children.
Saucy, fast-paced, exciting and funny by turns this is an epic tale with genetic engineering, psionic powers, futuristic military hardware and one of the sassiest female leads I've met.
Two enjoyable recommended reads.
The ending suggests more to come, I do hope so!
The author has also written two other unrelated books, Love Bites and The Journals of Professor Guthridge.