Zeebo advances into the north room.  The foul smell gets worse and he gags a little (still at -1CS).  He cannot see the shrooms but knows from the noise they are making that there are several.  One of them must be behind some desks to his left (closest and loudest sound).  He uses life leech:

Shroom 1 in range (col 9-1 for nausea = 8): 4 1 = white

Shroom 3 in range (col 8): 2 5 = white

Phallon also in range (col 8): 3 3 = white.  Phallon can feel a cold tingle from the attempted “attack”

Arvak would be in range, but the attack is blocked by the solid wall between them.

Shroom 1 and 3 come wheeling out from behind cover, heading at Zeebo.  Zeebo turns and runs/dodges back into the security room (dodge 12): 6 8 = green.  Everyone else gets ready to attack, but the shrooms do not advance into the doorway (again, no one can see them presently).

What now?