3.5 stars
Full review up on my blog

The Lost Sentinel is a character driven fantasy set in the beautiful land of Kalaya. Here the magic runs deep through the land, giving to the people and as they pass on, their magic is absorbed back into the land. The Sentinel guards the magic, holds it tight, protecting Kalaya and the people, but as times pass people begin to forget. People with magic are exiled, new people rule who begin pushing for magic to be banned. Things are going wrong on the astral plane as well, souls aren't making it through the gates, there is something in the dark, waiting, lurking, taking the souls for itself.
When Tei's father dies and she discovers the strength of her own magic, the Sentinel is old, he is losing his grip on the magic of the land. If the new Sentinel isn't found soon, Kalaya will no longer be protected.