You're home alone and unable to sleep.

To pass the time, you watch movies but eventually decide to read a book.

The book contains diagrams of summoning circles and the corresponding incantations.

Curiosity gets the better of you, and you choose the most intricate looking circle to draw on your bedroom floor. As you speak the incantation, a smoky figure materializes from thin air, a tall and muscular being.

With a booming voice, the figure declares, "You dare summon me, mortal."