next to the sacred Basin on the ground at the inner sanctum of the chantry of Auri El is a book that will grant the ability to call down flares from the sun, similar to how when you fire a sunhallowed arrow from auriels bow at the sun, it's a lesser power so you can have your merry time burning all the things that get in your way, assuming the rays of light hit the damn targets and not miss by mere inches.