end of book 4, some weird force finds a way to travel to the past to kill preservation and take lord ruler's body, then free ruin once the well is ready. harmony, before the misterious force goes to the past, sacrifices himself to send wax, wayne and marasi to the final empire era.
the mission is to make lord ruler die.
they arrive just after the skaa army has been slain.
vax team can meet kelsier's krew, and has some time to prepare the attack. he has vindication, some vials containing metals known at the end of allow of law, and of course the historic knowledge he has at the end of the book, spook's book included.
vax, wayne, marasi, kelsier, vin, ham, breeze, spook and sazed have to attack Kredik Shaw and kill lord ruler.
preservation have been slain by the misterious force, mist is ineffective.
could they make it? how?