Eight creatures to a plane shift. Hagan and Mahdi and Fazil and Aria and Draconis and Fy and North and Mahdi's bird make eight. The other people interested in helping will have to go in a different plane shift; they are given a map and instructions on how to find their way to the agreed-upon rendevous point.
They have four scrolls of teleport this time because the odds that they all fail are tiny. Mahdi has also halfheartedly lobbied for some combat before they find the enemy proper, as he's close enough to being able to cast more powerful spells that this might help; if they do happen to run into any, he's got the spells he's not currently able to cast all neatly written in his spellbook, and studies their spell diagrams obsessively.
They have a lot of healing potions and Haste potions and an eclectic collection of other spells.
They have the carpet.
Everyone stands around waiting.
"We're waiting for you to say 'okay, let's do this'," Hagan informs Fazil after a while.
Fazil looks slightly uncomfortable.