Starting your Journey to Storm's End

The next morning, you manage to arrive at the Red Keep early - leaving you to wait outside the gates for the caravan's arrival. As you pace around nervously, you take fleeting glances at the city below, from the slums of Flea's Bottom to the grand Sept of Baelor.

Soon you hear the clatter of hooves and wheels coming up the road to Aegon's High Hill. You walk to the edge of the hill and see at it base, several carriages riding up, with banners flying in the wind - most of them red and gold. The largest and most numerous showed a black stag on gold and golden lion on red, while others showed a flaming stag enclosed on beaten gold, with many other banners you saw only once - black birds on a bright yellow and wheat on brown, among them.

As you walk back toward the gates, you see the captain of the Kingsguard preparing his men to receive the convoy, wearing their most polished armour, they stood still behind the gates, facing out towards the oncoming men. They were stood like that for several minutes, as the carriages proceeded up the long and narrow road. Only when they finally reached the top did the captain open the gates. You saw a few lords, dressed in fine robes, step out, carrying with them a chest, inlaid with fine gold patterns, before placing it on the ground at the feet of the gates. They knelt down, and you saw walking towards them was Margaery, this time dressed in the full royal fineries.

"At ease milords," she said, breaking into an easy smile.

"My queen," the eldest said, slowly rising to his feet, "we have brought for you this annual tribute for the crown from the Lady Myrcella."

"I thank you and her for this, it is most essential for us to have this to ensure the continuing functioning of our kingdom."

The lords nodded collectively, before spotting you standing there, and turning back to the queen, confused. Margaery looks to you, before turning back to the lords to explain your presence.

"My lords, this man, John is to be my royal envoy to Storm's End, to serve in the court of Lady Myrcella."

"But, your majesty, who is he?"

You can see Margaery's smirk as she effortlessly spins up a lie, "He is the son of a landed knight who was sworn to House Tyrell. His father was recently killed by highwaymen, and as such, my house has decided to provide him this boon."

This answer seems to satisfy the assembled lords, and it is not long before you are seated in the third carriage from the front of the convoy as it begins its way down the road, and back to Storm's End.