You're being dispatched to Tiamaranta, Player. As the name may suggest, Tiamaranta is a place very closely associated with Tiamat.

Tiamaranta holds the physical sources to Tiamat's power, and must be reduced to rubble. Luckily for us, the Hushblade headquarters happens to be located there and is a fantastic foothold from which to strike.

Head to Tiamaranta and meet with Commander Ancanus.

Player: Accept.

Is it so hard to understand why?

Speaking of which, you should know that Tiamaranta's Eye in the center of Tiamaranta is the most dangerous place.

Good luck.