Assassin's Creed 2 Walkthrough

Wait, you don't have Sequence 12 or 13 in your game!? Neither did we at first. Ubisoft released the two missing sequences as downloadable content months after the game's release. If you want to play them, you'll have to download them.

After triggering the mission, you've got to walk through a wall of guards to, uhh, trigger it again (?). We're not quite sure why, but you'll likely have to fight the guards before you can hit the next waypoint that gives you, uhh, another waypoint. Anyway, you'll be lead to the far south end of Florence.

Make sure way south and speak to the man on the bridge and then start following him through the city. You'll have a couple of mercenaries behind you, but they're on your side. Worry about the guards. If you get into a brawl, make sure Machiavelli stays safe. Fortunately, he's a decent fighter on his own.

Walk to the waypoint ahead for a quick cut scene. You'll then have to escort Machiavelli to the next waypoint. Bring him there safely (you can use the rooftops if you want) and the mission ends.

At this point, you've got lots of repaired memory markers scattered across the map. There seems to be no particular order in which you need to complete these, so we'll just go for the closest one, the repaired memory directly southeast of Ezio.