This was part of an abandoned map called Harry Potter in Minecraft, because its abandoned I decide to release some parts (that I made) of it as short maps.
Many map makers worked on Harry Potter in Minecraft, but all the redstone found in this minigame was created by me.
In this map you play the final part of the Philosopher's Stone. Harry, Ron & Hermione go past several obstacles in the Underground Chambers (hence the name) to stop 'Snape' from getting the Philosopher's Stone.
If you aren't sure what the Underground Chambers are click here
You can select spells, by opening the spell book and left-clicking the spell you want to select.
You can use spells by right-clicking with your wand.
You can use your flute to play on it by holding it.
Available spells are:
Lumos - Allows you to see better in the dark for a short time
Aguamenti - Summons a small amount of water
Hot Air Charm - Creates smoke
Incendio - Sets things on fire
There are 7 obstacles/challenges in this map.
Fluffy: Fluffy is a large, vicious, three-headed dog. He will try to bite you. Music will distract him. Hagrid placed it in the third-floor corridor
Devil's Snare: The Devil's Snare is a plant with the magical ability to constrict or strangle anything in its surrounding environment or something that happens to touch it. It cannot stand fire. Professor Sprout placed it in the Underground Chambers.
Flying Keys: The Flying Keys are keys that were enchanted with a Flying Charm by Professor Flitwick. Take a broom and hold it to fly. Hit keys to make them fall down.
Wizard's Chess: Wizard's Chess is a Human Chess Game, which had been enchanted by Minerva McGonagall. Checkmate the King according to the rules of Wizard's Chess. Here you need to make several choices and aren't allowed to let Harry, Ron or Hermione die.
Troll: The mountain troll is in the next room. Sneak past it without waking it up, though it might already be dead. The Troll was placed in the Underground Chambers by Professor Quirrell.
Potion Riddle: The Potion Ridle is a logical riddle set by Professor Snape. Find and drink the right potion. Hermione might be able to help you with the riddle if it's too difficult for you.
Mirror of Erised: The final obstacle is the Mirror of Erised, designed and set by Albus Dumbledore. Erised stra ehru oyt ube cafru oyt on wohsi. It's likely that there is something else waiting for you in this room though.