Sergeant Allenos:
Do you need a rundown? The Seed of Destruction is a gigantic fortress, protected by Dragonkin, shield devices, and heavy doors.
There is no way to sneak in -- you must plow your way through, until you reach Tiat's throne.
Speed is of the essense. Stall too long, and Dragonkin all over the fortress will come running at you. Plan for the swiftest route.