The Häling and the Scottish Templars: Book One of the Temple Chronicles by L. S. Berthelsen

In Scotland in the spring of 1296, a ragged band of Templars seek refuge for a gravely wounded seneschal, a high-ranking Templar officer. As England invades Scotland, the Templars devise a dangerous plan to prevent the destruction of the Häling, a collection of priceless Celtic treasures, manuscripts, and masterpieces.