Ships are screened against teleportation magic by default, but some captains
choose to add in special (and often well guarded) chambers which can allow
these spells to get through. This spell is particularly adept at locating
these chambers and teleporting the caster to them. In general, the range is
quite limited; however, if the caster is in one of the teleportation rooms to
begin with, the chamber will boost the power of the spell, sending him over
much greater distances. Alternatively, if not in such a chamber, the caster
may dump extra energy into the spell directly, and extend its range somewhat.