[@Iatos] If you're throwing the torch at the hay then walking away, then this is what happens.
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As the flaming end of the torch connects with the hay, in the corner of her eye, the dragonborn sees a small pale female figure hidden at the back of the barn. The head of said figure darts to the kindling fire and as Ishalla turns her back, a high pitched scream comes from within the barn.

Birds scatters from the trees and a commotion loud enough to be heard over the crackling hay begins to resonate out, the screaming continues.