I follow one of the guards that leaves from the front gate and head off to the right, making sure to sneak slowly through the noisy gravel. At the exit from the gravel I dash across into the dark area directly ahead. The guard overhead wonders a moment if there's something behind him, but then brushes it off as nothing. From there I make haste to hop between shadows as I follow the path of the patrolling guard; I pass even closer to the watchful eye of the archer above, but the shadows are dark enough that he still doesn't spot me. I manage to get behind the patroller just as he's about to turn back around, and score knockout number one.
At this point I can still be a bit leisurely. There's a body down, but no one's going to patrol here for some time. I saunter along the waterway (making sure not to fall in early, as that current is strong) and head to the back of the house. A quick dip in the water is required to get to the northeast corner. I head around the corner and in the distance I can see another patrolling guard. The shadows here aren't great, and the space is too narrow, so I need to somehow get behind him. He makes a turn into the courtyard and I hop to the side he just came from. When he exits the courtyard I let him go a little ways into the shadow, and hit him.
Now I have to hurry. Hopefully I didn't let him walk too far ahead. I need to rush to get around the northwest corner of the house, past the grassy corner and into the narrow space along the western wall. There's a guard walking up and I dart into the far shadow near a storage tower. The guard passes peacefully. I let him continue his patrol.
At this point I'm really on the clock. The guard I just let pass is going to turn the corner and head toward the courtyard. If he gets too far he'll find the body back there. The reason I let him go, though, is that there's another guard fairly close on his heels. I don't want to run the risk of the second one spotting the one in front's body, and there's no good hiding spaces outside of this spot by the tower. So, safe for now in a deep shadow, I hurry up and wait. Once the second guard passes, I hit him and take off like a shot around the corner. How close is the guard to the courtyard? He hasn't reached it yet. Thanking the heavens for the relatively quiet grass, I rush up and knock him down. That's one...two...three...four. I need one more. One more guard that is getting ever closer to the first body I dropped, and here I am on the complete opposite side of the house!
Running pell-mell down the western wall, I realize that there's no time to dodge into the shadows or creep through the gravel at the front gate. Instead I swing open the southwest tower door (it's helpfully not locked), and take the stairs up. I'm on the wall. The archer on this side is in sight; his back is to me and he's only focused on who or what might come in from the front gate. I run about as far along the wall as I dare, and get into the shadow of the mansion. Slowing my pace just a bit, I get behind this guard and knock him out with one sharp blow.
With no time to lose, I continue into the empty guardhouse over the main gate. I come out the other side. There's the other archer ahead of me, and his back is to me as well. I can see the last patrolling guard down on the ground. If I don't act now he's going to turn the corner and spot the body of my first target. Not bothering to tell the guard that there really is someone behind him this time, I bash him good and he goes flat. Without a second to spare, I hop to the ground. The last guard is walking along the front tower. He's nearly around the corner, almost in sight of the first body, when I swing my trusty blackjack and hit him square in the head. He's out cold. Five patrols, two archers, all clean knockouts and the outside grounds are clear.