Casimir's Silence. The Sekou Saga: A Tale of Balia in Four Parts, #4

When a storm spreads the group across the shores of the great sea, they begin the long journey back to one another. Each finds clues along the way that speak of the true origins and purpose of Galleo, their ancient friend, as well as one final mission deadlier than all the rest put together. Racing time, facing loss, and fighting enemies, the teens use visions, mystical gifts, wisdom beyond their years, and memories of things lost to make their way to one another and then to an inland mountain where thousands of lives hang in the balance.
Much to everyone's surprise, Casimir, the arrogant boy prince, suddenly becomes a force of his own, leading where nobody else wishes to lead and breaking hearts when he sacrifices everything for those he loves. It seems the god has asked more of the group than they can possibly give, and they have little hope for success. However, each hopes that any who survive this final battle will finally have the blessing of finding home. Casimir's Silence is the final installment of the Sekou Saga, a Tale of Balia in Four Parts.
The series includes Chessa's Rescue, Dane's Mountain, Gem's Gypsies, and Casimir's Silence. The Tales of Balia: Stories of a world not unlike ours and the deity who will stop at nothing to get his children home. Historic fantasy with a Christian worldview.