When dinner time comes to an end, nature usually calls. But what is the path to the Prefect's bathroom on the 5th floor? "Follow the spiders", a creature whispered. Decorate the way to the bathroom with spiders. Attach Moaning Myrtle's face on the inside of the toilet lid for a spooky experience. If you want to go all the way, let some crying noises be played in the background. Attach a label above the light switch with "lumos", adding some humor to it.