Potion Class

In Luz's and Amity's potion class, they were working on a new potion that finds the user's soulmate. As soon as the user and their soulmate figure out about the bond they are forced to stay together within the same realm within 2 miles of each other. Once one is in the opposite realm of the other they start to suffocate. They will die within 3 minutes of this separation. This potion also allows the soulmates to write to each other on their skin, but that also means that any injuries are shared too.