This is such a unique and creative game! I'm really impressed with what you accomplished in just a four day game jam. The music and art are both fantastic.
It took me a while to figure out what was going on, and I'm not sure I ever fully grasped all the mechanics, but that's probably just me! The pace felt a little slow at times, which might have been related to my confusion. I kept wanting to use my mouse to interact with things, especially the spell book, but it was clear what keys to press.
Overall, great job on a very cool and original concept!