Uncharted 4: Chapter 6 Once a Thief - walkthrough Uncharted 4 Guide
This page of the Uncharted 4 guide has a walkthrough for chapter 6 – Once a Thief… (infiltrating the mansion, reaching the basement and sabotaging the fuse box).
Last update: 27 January 2022
This page of the Uncharted 4: A Thief's End guide has a walkthrough for chapter 6 - Once a Thief... You will learn, e.g. how to climb and reach the mansion's grounds, how infiltrate the party, how to get to the basement and sabotage the fuse box.
Chapter 6 information
This is a rather long chapter requiring you to sneak into a property undetected. There's a black marked goods auction held inside of the mentioned building. During most of this chapter Sam will by accompanying Nate. You don't have to worry about him, as you won't be meeting any enemies here. Instead, there will be plenty of exploration and climbing to do here. While exploring the area pay attention to your surroundings, as there are three optional conversations to have here and a total of 9 secrets to reveal.
Reaching an open shutter
Follow Sam. You don't have to worry about being discovered by enemies, as you won't be meeting any guards. Try to stick to the left side of the rocks all the time. After reaching the edge of the cliff (that will take Nathan some time) you will reach the first treasure (Mughal Water Container) that can be seen on the above screenshot. Resume your march and stop upon reaching an interactive attachment point located underneath the bridge. Take the grappling hook from Sam, aim it at the attachment point and fire the rope to grab onto it.
Direct the camera towards the rocks located on the left side and start swinging back and forth on the rope. After getting sufficiently close to the interactive edges perform a jump to grab onto one of them. Start off by moving to the left and move down to reach the edges located below your position. Move further to the left and grab the rope (by pressing the X button) deployed by Sam. Start running against the wall of the cliff and perform a jump towards the ledges on the left side. You can now move further. You must reach the tree extending from the wall. Grab onto it, swing on it (by tilting the analog stick upwards) and perform a long jump.
Climb on top of the wall and sit through a short cut-scene showing some guards. Fortunately, they will leave the area and won't bother you in the future. You will end up in a small orchard. Head straight ahead until you notice that a conversation icon appeared over Sam's head. Speak with him to initiate your first optional conversation in this chapter. After reaching the buildings locate the shutter shown on the above screenshot (it's located behind one of the trees). There's a new treasure (Nephrite Brass Cup) located here.
You can now head to the left. Reach the entrance to the building and go downstairs. Pay attention to the attachment point located under the roof. You must use your grappling hook here and then jump through the shutter to lower yourself on the line (remember to keep the L1 button pressed all the time). After you've descended yourself to the maximum, start running left and right on the wall to gain some momentum and jump to the ledges located on the left side.
Move a little further and wait for a reaction from Sam - you will be able to initiate a second optional conversation here. Afterwards, start climbing the smaller stone construction (by grabbing onto tiny interactive ledges). After you reach the top, jump towards the vertical stick emerging from the rock. Swing to gain momentum and perform a long jump. Go to the left and start traveling along a very narrow shelf. After reaching the end of the said shelf, turn your camera up and go through another climbing section. Get onto another stone ledge, wait for Sam to reach the top and grab on the rope he drops you. Use it to get to the top (by pressing and holding the L1 button again). After reaching the shutter a cut-scene of meeting with Sully will initiate.
Reaching the basement
After regaining control over Nathan, don't rush to complete the main task, as the auction won't begin until you complete all the planned activities. First things first, get back to the room in which Nate and Sam met with Sully just a second ago. There's a new treasure (Viking Cloak Clasp) here, lying on the chest of drawers located to the left of the entrance (as shown on the above screenshot).
Get back to the place you started the exploration of the manor at, head straight ahead and head to the right to reach a large outdoor balcony. You can perform the third optional conversation with Sam here. Aside from that, there's another treasure (Mother of Pearl Horn) located to the right of the entrance to the balcony, as shown on the above screenshot. You can now resume your march. Follow Sully to the ground floor (you can examine the list of items prepared for the auction on your way there) and you should soon reach the door leading to the basement. Examining them will lead to a conclusion that the door is locked.
In order to get into the basement you need to steal an access card from a waiter who just left the said room. Approach the man and try to steal the card. You must press and hold the L2 button, and then try to keep the highlighted circle (it will gradually become smaller) on top of the waiter's hip-pocket. The first attempt will result in a failure, but during the second one you should be able to aim at the pocket long enough. To steal the access card you must press the Triangle button as soon as an information appears on the screen. You can now unlock the passageway to the basement.
Note - If you waste all the opportunities to steal the access card, Sam will help you out by talking with the waiter. It will cause the man to stop moving from place to place, making the theft a lot easier.
Sabotaging the fuse box
After entering the basement go through the first passage on the left side. Head straight ahead and examine the corner shown on the first screenshot above - there's a new treasure (Persian Bronze Bowl) located there. Afterwards, follow Sam and pass a room with several guards inside (you don't have to enter it). Get to the staircase, use it to get to the lower floor and examine the area. Search for the next treasure (Brass Barber's Bowl) shown on the second screen above.
Ignore the closed gate and follow Sam to the right side. Approach a large barrel and push it away to unlock a new passage. You will soon reach the main area of the basement. There will be an electrical installation failure, forcing you to depend on the light given by Sam's lighter. Try to move close to Nate's brother and wait for him whenever he can't keep up with your march. Explore the basement and look for another large barrel. You must pull it towards yourself.
Circle the barrel you just pulled from the left side and use the opportunity that moving it unlocked a new passage. After a short while you will reach yet another large barrel - just as the one before it, you must pull it towards yourself. Get back to the crossroads you passed by a moment ago and go to the opposite direction. You will reach the area shown on the above screenshot, with two holes in the wall, which were exposed after moving the second barrel. Use them to reach the last section of the basement. Search for another barrel on the left side and start pulling it towards yourself. You must position it in such a way, so that you will be able to climb it to reach the ventilation shaft located on the ceiling.
Go through the tunnels into a new part of the manor. Sam should approach a closed gate, but ignore him for the time being, as there's a hard to get secret in the area. Head to the left and jump to the lower ground (the one with a small fountain). Look for a ladder located on the back of the building and use it to access a small balcony. Look up (you should be located in the place shown on the above screenshot) and start climbing.
Grab onto subsequent ledges and gutters. First move upwards and then to the right. Pass the corner of the building and get on top of a roof located on the lower ground, where you can find the treasure (Syrian Vase) you are looking for (shown on the above screenshot). You can now get back down and return to Sam. After you determine that the gate is closed, locate a seemingly inaccessible ladder in the area and give Sam a leg-up to help him lower it down.
Get up the ladder and turn left at the first ramification. Climb up the roof and draw your attention to a small balcony presented in the picture. If you perform a perfect jump (you'll only have one shot, as the game will create another checkpoint), you will be able to collect a treasure (Persian Candlestick). You can jump down now. Investigate the ladder that was raised up. This time Sam will lift you up, and thus lead to a cut scene of an unexpected meeting with the staff member.
From this moment onwards you have to work alone, but it shouldn't be a problem. Look around the new large area. To get to the next area you must first get on top of the roofs of the buildings in the area. The easiest way to do so is by climbing the hedge. You should reach the place shown on the above screenshot. You must perform two long jumps here - first on the large arbor, and then on the fragment of the roof of the building visible in the distance.
After reaching the second roof, starting climbing vertically using the shutters, ledges and other elements of the wall that Nate can grab onto. After reaching the top of the construction turn around in the direction of the horizontal bars sticking out of the wall. Use them to perform a series of jumps. The last jump won't be a perfect one for Nate and the game will initiate a cut-scene.
Wait until you regain control over the protagonist and jump to a horizontal bar. Let it go to grab another bar located directly beneath you. Afterwards, swing back and forth to gain momentum and perform a jump towards a new ledge. Don't rush, as there's a well-hidden treasure in the area. Head straight ahead and approach the ledge. Drop down from here. Look for the interactive ledges that Nate can grab onto, located on the right side (as shown on the first screenshot above). Use them to reach a small hole with the treasure (Mughal Dagger), shown on the second screenshot above. Pick up the treasure by staying in the hanging position.
Get back on the stable ledge and look for the bars located above you. Climb your way to reach them. Jump from one bar to the other, until you reach the last one. Move to the right side of it, grab onto the ledge, pass the corner and start climbing vertically. Your destination is a single open shutter.
You will end up in a room located above the generators. You must squeeze through a number of places until Nate is able to jump down to the room and start exploring it. Examine the closed gate and a cut-scene showing the opening of the auction will initiate. You must hurry now. Search through the nearby containers until you acquire the crowbar (the container it's hidden inside is picked randomly). Afterwards, get back to the gate, get through it and sabotage the fuse box. This will end this chapter.
Note - if you take too long an armed guard will appear in the room and kill Nate!