You're the last surviving sorcerer's apprentice of Sorth, the Dark Lord of Castle CantSayTheNameOrIHaveToDie. Whilst cleaning the library, you dropped the "Dark Grimoires of Sorth" to the ground and all banished creatures could escape. Now it's on you to clean up the mess.
Make your way through the castle and look for all escaped creatures and push them to their pentagrams to ban them back into the Dark Grimoires of Sorth.
Use the cursor keys and the space bar to select and push the creatures around and solve more then 50 puzzles. It might look easy first, but will twist your mind in later stages. Every creature has to be pushed to the pentagram of their color, and press space to release it and ban it into the book "Dark Grimoires of Sorth".
The first stage, The Village, introduces you to the game play and how to solve the puzzles, i.e. how to move around and finding the right order. Collect hearts (gives you extra lives) and potions (avoid dying on deadly skulls) in later levels and pick up the clock if you're running out of time.
TIP: From time to time, you might need help from other creatures to solve the puzzle. You can even awake already banned creatures if you need them.
With every next stage, the game introduces up to seven new creature types and obstacles like arrows (redirect your creature in a given way), bumpers (pushes the creature back), portals ("teleports" the creature of that color between portals), blocker stones (can be only removed by creatures of that color), keys ("unlocks" a locked pentagram of that color) and deadly skulls that kill your creature (this will cost you a life if you don't have collected the potions and pushes the creature back to start).