Another twist of the summoning genre of spells, is the spell relocate. With
this spell, one is able to travel instantly to another location, that is
targeted by choosing another person to relocate to. Certain areas will block
relocate spells, but where it is possible, this is a very handy spell indeed.
In fact, long ago, an entire castle was raided due to this spell. It could
withstand any siege, but a crafty warlord had a group of mages relocate into
the castle and open the gates. Ever since, many strongholds now have
preventative runes against summoning magic cast upon them.