This has gone from a small-scale infiltration to a full-out assault. That's good.
Eric's desk is held in an evil flying fortress of doom. We will face many dangers, the least of which may be Jacob's codes.
I propose a plan:
The Armada of Yeshan youth will breakdown the north wall of the fortress, while the bloodthirsty Anglean jarheads will break down the gate to the south.
Once the defenses are broken, an intense battle will rage inside the fortress. In the cloak of the chaos, an elite group of heroes will climb to the highest room of the tallest tower to free a princess. After that, the heroes will search for the desk, Carn will crack it open, and we will rapidly retreat before the wrath of Muse gods finds us.