Walkthrough tips, Discussion of Campaigns [Heroes 5]

Hello everyone!!!
It's a bit embarrassing to ask, but where should Agrail run to in the first stage of the second mission (for Inferno), because I've been wandering around the map for two days now... :confused:

Take Agrail down to the border gate; it will be closed. Go to the right, and you'll find a keymaster's tent. Return to the gate, enter inside. In the dungeon, gather your troops and run along the road, jump into the underground gate, and you'll find the final battle.