The time for heroes has returned. When a force of darkness arises, a secret organization sworn to protect the world assembles a team of elite beings to defend against it. Seven individuals, all with powerful magical abilities and very different backgrounds, must come together to form a team of the world's greatest heroes that will save us all. They are the Sentinels. A knight out of time. A siren who has lost her voice. A demigod determined to become a legend. A hacker with a beastly problem. A princess with a past. A druidess eager to help. A marksman that never misses. Book 1 of The Sentinels Series.