The book that you found in your late great-grandmother's attic is the cause of your headache and a pain in the ass. You couldn't help but try to summon an angel, could you? The ritual is over, the bizarre spell is cast... And there is no angel in the chalk circle.

"If you wanted to keep me inside, you should have use holy oil and fire it." The angel sighed, the rustle of wings was heard behind you.

"Who are you? And why you called me?"