Loc: Brass Gate
A shining gateway of finely wrought brass, missing a door—and even a wall. There is a 1-in-6 chance that the gate is functioning as a portal across time and space. If so, a darkness, interrupted by the points of starlight, is visible through the gate.
It is to be determined where or when the gate leads. You may like to roll random encounters in this area from some other encounter table, having them enter through the gate.