Arcane Transportation

As you cast the spell, you draw a 10-foot-diameter circle on the ground inscribed with sigils that link your location to a permanent teleportation circle of your choice whose sigil sequence you know and that is on the same plane of existence as you. A shimmering portal opens within the circle you drew and remains open until the end of your next turn. The first six creatures that enter the portal instantly appear within 5 feet of the destination circle or in the nearest unoccupied space if that space is occupied.

It is believed that prior to the fall of magic, major temples, guilds, and other important places have permanent teleportation circles inscribed somewhere within their confines. Each such circle includes a unique sigil sequence--a string of magical runes arranged in a particular pattern.  You can learn additional sigil sequences during your adventures. You can commit a new sigil sequence to memory after studying it for 10 minutes.