The storm rages hard throughout the night. Lightning strikes close to the town, and you suspect that since Thyrin's tower is particularly tall, it's hit more than once. Nobody except you are patrons at the inn's common room tonight. It seems that the villagers have decided to stay dry, at home with their families.
In the morning storm is less severe, though rain still falls moderately hard. Thunder rumbles, but it is far away. You thank the innkeeper, pay her for the night, and head off to Thyrin's, fully rested, fully healed, and ready to fight fire with... song?
You arrive and immediately dash into the hallway into the common room, to escape the rain. Cassandra is standing outside, the water droplets conduct her sparking form and make her seem more nebulous and less human. She is outside, kept at bay by the same containment field that keeps the rogue elementals inside.
"All ready?" she asks, her voice strangely modulated, possibly due to the rain. You ask her about the wands. "Ah. In case you hadn't guessed, Thyrin is a little p-... protective. He keeps a wand of magic missile and a wand of color spray beneath his pillow, he always has. Is that all? Thyrin is waiting, good luck."
The tower is as you left it, the door on the third floor remains shut.