Nexus

This spell opens a magic nexus to your victim. You can use <enter nexus> to transport yourself to the room your portal leads to. A nexus is two-way, so that everyone on both sides may enter the nexus and come out at the opposite side. The nexus will remain open for a fixed period of time, dependent on the caster's level and the strength of the spell.

Note that you cannot create a nexus in some rooms, and some rooms cannot be targets of a nexus.