In the Radicals Handbook, there is a Major Arcana called "Create Door" which lets the caster create "a burning doorway" to lead just about anywhere else the sorcerer can recall (with applicable difficulties, etc). It is listed as being non-sustainable and has a range of 5m. So, with this in mind, how many people can go through the door? Only the sorcerer? Anyone who can make it to the door in a full move action, even if 30 men are all within a full move action of the door? Something between those two extremes?

Since it says that the door shuts behind the sorcerer, I'd say that, technically, the door would be only for the sorcerer. However, to balance it (and make it something more than an escape route), I ruled independantly that the sorcerer's WP bonus number of people could pass through the door (including himself) before the door snapped shut.

MILLANDSON said:

Good solution, thanks! I had figured it would close behind the sorcerer, but since it can be opened up to 5m away, it's target isn't "self", and it takes a full action to create 9negating any kind of moving into it before others can move about in a combat situation), it would be in existence for a short period of time in which some number of individuals could go through it before the sorcerer... and thus my question. I guess when in doubt, go with a characteristic bonus ;-)

There was a Psyker power in 40K 2nd. Ed. that opened a warp door similar to the power in RH. The rule was that the Psyker and any models attatched to the Psyker (say they had joined a squad) could use their movement turn to use the portal. You even got these cool little cardstock standees in the game box to mark where both halves of the portal were on the tabletop.

I often made use of this with Space Marine Librarians to do horrible things to the Emperor's foes. Librarian joins a Marine squad then portals them behind enemy fortifications! Carnage ensues!

The WP bonus is always a good benchmark to work with if you are in doubt. Since this IS a portal through the Warp though, I am a little partial to the "anything that passes through the portal in the brief time it is open has passed through the portal" idea. Chaos does not play well with hard, fast rules and the Warp is made of raw chaos after all.... Think about the story potential:

"Sorcerer decides they dislike how a fight is going and opens a portal to retreat. Player character screams a dramatic 'Noooooo!' and leaps through the rapidly shrinking portal-eye! So now the Sorcerer (assuming they cast the spell correctly) is standing over the brave, yet stupid Acolyte in a place of their choosing, while our hero takes in his new surroundings... It is about that point that he notices the severed hand and forearm of the poor trooper that tried following in his footsteps lying on the decking nearby and still clutching most of a steaming and ruined Lasgun..."