Where to find all of the Undead Bone Shards? Dark Souls III Guide
Last update: 01 June 2016
Undead Bone Shards are items that increase the potency of Estus Flasks and of Ashen Estus flasks. After you find a shard, you have to burn it in the bonfire in Firelink Shrine to increase the potency of flasks. Apart from that, Bird merchant can exchange Undead Bone Shard for Porcine Shield.
The below list presents whereabouts of all the shards. If you have problems finding any of them, see the description of the location in which the shard is.
1. Undead Settlement
Start from Dilapidated Bridge bonfire and walk towards the area where you can be exposed to the spears hurled by the giant (if you are not friends with him, otherwise he will be hurling them at enemies). By the house entrance, by the tree, go left to get among graves. The shard is in front of a small cottage, on one of the corpses.
2. Cathedral of the Deep
After you cross the area with respawning skeletons, cross the bridge. You will get into an area where more skeletons respawn. To the right of the area, there is a patch of land with spears that the giant of Undead Settlement throws. The shard is on the corpse by the edge.
3. Farron Keep
Travel to Keep Ruins bonfire. A bit ahead, on the right, there is a tower. Kill the larva inside and pick up the shard.
4. Catacombs of Carthus
At some point in the catacombs, you will get to stairs, where a ball of the undead rolls down. Wait for a moment, because the ball will smash eventually. The first time around, you can collect the shard from the remains of the ball.
5. Smouldering Lake
From Demonic Ruins bonfire, climb down a little, into a narrow corridor where there are two mages that make projectile-launching orbs. Kill them and walk over to one of the corridor's ends, where you find the item under a jelly monster hanging down from the ceiling.
6. Smouldering Lake
Defeat the big bug in front of the boss arena.
7. Irithyll in the Boreal Valley
Travel to Church of Yorshka bonfire. Leave through the exit on the left and go to the cemetery. Then, go up, to the right and you will reach a single opponent kneeling in front of a big grave. Kill him and collect the shard behind the grave.
8. Profaned Capital
By the Profaned Capital bonfire.
9. Lothric Castle
Cross over the bridge right in front of the large gate and two dragons. Jump down at the other side. The shard is right under the bridge.
10. Grand Archives
While on the rooftops, go to the location where you can find two twinkling lizards (and two stone gargoyles). Jump over to the balcony on the right, get by the knight and follow to the end of the dark corridor. You will get above the bridge where you have fought the double of Crystal Sage. The shard is on the corpse on the chair.
Note: You can get here through the hole in the roof, if you go left on the rooftop with two lizards, and up, across two more rooftops, around gargoyles.