Wake up to the others checking on you. Lavitz is still out, but he got a rougher knock out. Hachel will join the party before Lavitz wakes up and it's time to raid Hellena again.

I hope you didn't miss the place. There is now a faster way in with a cost. Barge your way in through the gates and find your way to that guarded room from your last visit. The Head Warden will merely laugh before sending you to the basement with a trap door. Most of the group will either be knocked out or need to rest (Lavitz). Shana will still be awake before you are attacked by the beast of Hellena.

Now you get your Dragoon.

If you have a fan-made Dragoon, you'll simply pull it out and use it. If not, you'll pull out a special knife that'll let you transform into the Dragoon. Either way, Shana will be the only one to experience it. You'll enter a battle with only Shana and yourself. Take on the beast like normal (You'll only have 2 Dragoons in the battle) before cleaning up. Shana will ask about it, only for a reply of 'later' before it's time to escape.

Wake the others up and push through the guards on the way up. Get up to the roof and face against the Head Warden and his beasts. The Warden will still be a threat, but be careful with your health. Shana and Rose can keep the team alive while Haschel and Dart can deal high levels of damage. (You will not have access to your Dragoon in this fight.)

Experience the saddest cutscene of the whole game (Etta's crying in the corner) before escaping with Albert.

Get back to Seles and hide in one of the cellars. Experience the cutscene before the team is set. Albert will be taking Lavitz's spot with the Jade Dragoon and Shana still hasn't said a thing. The others will start discussing a plan against the imperial army before you black out.