Now, make your way to room N, go up. Use the blue key to unlock the door. Once inside, you will find a switch to turn green and a little spot where there's a green key hidden.
Go down and then left until you come to a locked door! Use the green key to unlock the door. Unlock the box by moving the letters around until it makes the word ZEBRAS. Take the juicy pink gem, hidden inside!
Head left, flip the switch to green and click the sink. Use the magnet to get the key from the drain, a gold one! Also take the lighter, it's easy to miss!