Monster Tower Escape

You awaken to the sound of birds. Opening your eyes, you find yourself in an idyllic forest that looks as though it were taken straight from a fairy tale.

Your brow furrows as you try to remember how you came to be here. The last thing you remember was going to bed back home and then... You woke up here. Were you dreaming? You try to pinch yourself awake but to no avail.

You quickly search for clues as to what happened and you find an envelope nailed to a nearby tree.

"Dearest Clara,

If you are reading this, you are the latest participant in a little game I've made to test the common folk and keep myself entertained." You don't like the sound of that. "Each level of the tower is populated with all manner of magical creatures, If you can make it to the top of the tower, I will grant you one request if it is within my power to do so. If you are unable to evade or outwit the creatures, you will be stuck here forever. Or at least until I get bored of you.

Signed

Corvus Mayweather"

A sense of panic builds within you. What kind of magical creatures? Are they dangerous? How many were there?