9 people, eh?
I recommend the Tomb of Horrors.
Sorry for my delayed response to your inquiries.
The session was cancelled by the DM who no longer wants to run his campaign. He asked me if I would run the group, which now includes him as a player, using the 4th edition ruleset. I have been somewhat busy with trying to get the campaign ready. The party refuses to split down the middle into 2 groups. Writing encounters for 9 people is not easy.
As for the Unstoppable Undead...I have a sneaking suspicion that we won't see them again.

Sorry for my delayed response to your inquiries.
The session was cancelled by the DM who no longer wants to run his campaign. He asked me if I would run the group, which now includes him as a player, using the 4th edition ruleset. I have been somewhat busy with trying to get the campaign ready. The party refuses to split down the middle into 2 groups. Writing encounters for 9 people is not easy.
As for the Unstoppable Undead...I have a sneaking suspicion that we won't see them again.
9 players = slow gameing and chaos, but can be fun it just needs a Hitlerezsk iron fist of a DMwherer the players live in fear for messing up the flow of the game.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.