Jump through gate [863]
-----------------------
Usage:  USE 863 <gate> [key]

Required aura:  one point for each 50 weight
Required item:  none
Time to cast:   one day

The caster will teleport through the specified gate.  The gate
must be present in the current location.  If the gate is sealed
with a key, the key must be supplied for the jump to succeed.

One point of aura is required for each 50 units of weight in the
caster's stack to be transported.