When he reached the end of the stairs, he found a long hallway. The torch was too dim to show him the end of the hallway so he decided to use Blinding Light to see the lay out of the place. The spell allowed him to see the whole hallway for a brief second and he managed to catch a glimpse of where he was going.
Cursing, Astalos remembered the spell details - it was to blind someone, not to provide illumination. It took a while until he could see again. Some days he wished spells were more flexible, but he didn't feel like using spontaneous magic at this point.
