Portal of Reflections (Spell)

Portal of Reflections is a 3rd level Conjuration spell that uses two mirrors to connect a portal for up to 10 minutes. 
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==Description==
You link two reflective surfaces that you can see, creating a magical portal. Creatures that enter the portal on one surface emerge from the other. The portal is large enough to accommodate Medium creatures. The spell fails if you attempt to set the exit portal in a location occupied by a solid body. While the portal is open, any creature within 5 feet of one end can see through to the other side as if looking through a window.