Tapestry. Threads Of Iolth, #1

Captain Julian de Marque has spent eight years burying the past beneath discipline, duty, and the cold precision of a swordmaster's life at the High King's castle. But when the grieving mage Zachary de Mordenkine summons him to investigate the murder of his long-lost son, Julian is forced to return to the coastal village of Weslan - the place he swore never to see again. At the center of the mystery lies Sorrow's Isle, a forbidden island that rises from the sea only once every several years.
Hidden within its ancient ruins rests the Tapestry of Last Knowing, a legendary Adorithi artifact said to reveal not only truth, but the deepest moral reality hidden within the human soul. As Julian follows the trail left behind by the murdered scholar Corbin de Mordenkine, old wounds begin to reopen. Ancient conspiracies stir beneath the surface of Weslan. Dangerous secrets tied to the island threaten to destroy anyone who uncovers them.
And the Tapestry itself may prove more terrifying than the killer they seek - because it does not simply expose lies. It judges. Blending epic fantasy, mystery, ancient magic, and emotional reckoning, Threads Of Iolth: Tapestry is the first entry in a sweeping fantasy saga about guilt, truth, and the devastating cost of finally facing the past.