Okay, allow me to clear things up, as you all seem to be trying to do about 4 things in round 3.
In round 3.
Seebor rushes up the rest of the stairs to D4 and takes a swing at the elemental which doesn't seem to do any damage. He also yells "Withdraw and regroup!! Run!! Get behind me!!"
(I'm presuming your yelled comment about invisibility, running and your chair throwing fit takes place in round 4)
Namfoodle: Cowering in D2, Namfoodle mutters some words then feels the familiar warm glow of his Boccob's healing wash over him.
Amaryllis ... presuming your round 3 action will be what you previously said it would be ... move to C3 and magic missiles. (invisibility will be round 4 after you've heard Seebor's plan)
Neblin: Hides partially behind a door and levels his wand at Mr Friendly, dealing some damage. Mr Friendly seems to have felt the damage, but is still looking strong.
Mr Friendly: Decides that Neblin is too far away and he will deal with the foolish creatures closest to him first. As Amaryllis is the only one in the group who has hurt him he whacks a large arm down on her doing 19 points of damage.
Tomas: Rushes the rest of the way up the stairs, ending up in D3. You swing at Mr Friendly and it doesn’t seem to do any damage. You can't retreat because you've already moved this round.
Is everyone clear now about what is going on?