"Follow Leon" is a mission objective in Sequence 13 / Memory 02: The Book Thief
Walkthrough[edit]
Leon will dart of the cell to get into a hiding place and Arno needs to follow him. Just keep a good walking pace and you will have little trouble keeping up with the young boy. He will lead Arno to a small stash and give him the Guillotine Gun.
You will need to keep following Leon after you get the gun. Head down into the nearby opening. Keep up with Leon as he will provoke a group of Raiders to start after him.
You will get a quick tutorial on how to fire the Mortar of the Guillotine Gun. Follow the prompt to take out most of the Raider Force below you. Then hop down and engage the survivors in melee combat.
Head on down the slope through the doorway opposite where all the Raiders gathered. This is to the Southeast. At the bottom of the slope head over to the right. Look around to spot the Leader of the group. Either move in for a straight assassination or just take him out with a Phantom Blade. From there just head over to where Leon is standing. Deal with any of the stray Raiders that come after you. Get over to the door that Leon has put himself behind.
Leon will head off down the path. Follow him and listen to the Soldiers talk some about the Marquis de Sade. Go over to where Leon is to get another Cutscene with Napoleon and one of his lieutenants.
