Dr. Dezrahs worms hole

This spell is like a demension door but you are moved underground through a hole by worms like a pesant railgun, the efect is not instantanious as it takes a little time to travel and requiers the user to make a hole in dirt  or too dirt  this hole can be traversed by anything meduim size or smaller. the hole stays for 24 hours and is two wayed the exit point must be dirt and will find the clocest patch of dirt to desierd location, caster choses how many feet in a direction not knowing where it will end up (unless they use divination means to learn a location or it is a location they know in range) if a creature is unwilling they must mae a str save.

every  level above 5th increases the alowed size class by a stage (medium-->  large --->  huge etc... )