Runes
There is an apartment building with a Windmill that powers the Wall of Light. Explore the roof of it and Blink down to an apartment balcony underneath the Windmill. Clear the nests inside that apartment and get a Rune from the bathroom.
A Rune is locked inside the safe in the First Captain’s suite. That’s on the first floor of the palace. Get the combination from the Duke’s suite several floors up and then unlock the safe later when you come downstairs again.
There is an abandoned storage area in the palace. Break through a barricade at the side of the private gardens to get into this area. Descend until you hit the water, and use your Heart to locate a Rune at the bottom.
Leave the black market using the front door. Look right and get up onto a few rocks. Search the grassy area above until you find a set of wooden boards. Break them open and look inside the small cave for an Outsider Shrine.
Bonecharms
Near the Ravina district’s Wall of Light you find two apartment buildings. The first one has a Bonecharm on the third floor. Go into its apartment and search in the bathroom.
Before leaving the Ravina district, search the apartment that’s closest to the Wall of Light. Unlock the third floor apartment with a Key from the Winslow store’s cashier. Search the bedroom and knock aside a pillow to get a Bonecharm.
In the Palace District you find a Throne Room. Look on the throne for a Bonecharm.
The first floor of the palace has a Bonecharm inside of a small room. It’s very close to the banquet hall. Track the Bonecharm with your Heart and look for a room with two civilian women. The Bonecharm is in a bed in the small suite.
A Corrupt Bonecharm is on the third floor of the palace. Get up there and explore the suite on the right. The charm is inside one of the bathrooms. Open the lower drawers to reveal it.
Blink/Far Reach to a balcony across from the Winslow store. Destroy any Bloodfly nests that might be inside and open a vice against the wall. A Black Bonecharm is inside of it.
Open the Duke’s Vault by going into the pantry, in the basement. Search for a recessed button and press that. This opens the Vault and gets you a Blueprint and a Black Bonecharm in the adjoining chambers.
Paintings
Before you reach the Wall of Light in the main district, look for an apartment building with a Windmill. Blink/Far Reach from the Windmill down to a balcony below. Clear the nests inside of it and look in the bedroom for a Painting.
Go into the palace and climb to the third floor. Look on the right side of that level. A Painting is near a piano. It’s tucked into a corner and can be hard to see unless you’re searching for it.
The other Painting inside the palace is also on the third floor. Go to the other side of the level and open a large office. Deal with the Clockwork Soldier inside, and search on top of the hearth to get your Painting.
Blueprints
The last apartment building before you reach the district’s Wall of Light has a Blueprint on the third floor. Get the apartment’s Key from the Winslow store’s cashier. Break in and get the Blueprint from a regular desk.
If you haven’t already gotten Firing Chamber Pivot, the Blueprint for that is near the Wall of Light. Look in the stall at street level, to the right of the Wall. It’s near a Pistol that’s been left out.
Folded Galvani Resin has a Blueprint in the Palace District. Go into the pantry and look for a secret button along the wall. Press that to open the Duke’s hidden vault. The first table in the main room of the vault has this Blueprint.
Blade Conversion is on the third floor of the palace. Look in the office suite to the left when you climb the stairs, and defeat a lone Clockwork Soldier. Then, search inside a desk to get the Blueprint.