Stronghold Skull

The Stronghold Skull is a type of Bounty Skull in Sea of Thieves. Bounty Skulls are cursed remains of Skeleton Captains that hold memories and secrets of their past lives. These memories can be extracted by Order of Souls Madames on every Outpost. As these memories are valuable, they are willing to buy the Skulls for Gold and Reputation.

Where to find

Stronghold Skulls can be found from the following sources:

1 Guaranteed inside every defeated Skeleton Fort Vault
4 Guaranteed inside every defeated Fort of the Damned (Raid) Vault
1 Guaranteed inside every defeated Fort of Fortune Vault
Guaranteed drop from a Skeleton Fort Skeleton Lord Boss
Chance to be found on Skeleton Ships
Possible reward for defeating a Kraken tentacle
Possible reward for defeating a Megalodon

Rewards

Stronghold Skulls can be sold to:

Madames stationed inside Order of Souls tents on Outposts for Gold and Order of Souls Reputation and Emissary Value (if sailing as an Order of Souls Emissary).
The Servant of the Flame at The Reaper’s Hideout for Gold and Reaper's Bones Reputation and Emissary Value (if sailing as a Reaper's Bones Emissary).

The following is the reward chart for the sold Skull:

Emissary Grade	Gold (Min.)	Gold (Max.)	Emissary Value
No Emissary	1,800	4,200	0
I	1,800	4,200	9720
II	2,394	5,586	12927.6
III	3,006	7,014	16232.4
IV	3,600	8,400	19440
V	4,500	10,500	24300

Notes

Picking up and placing Bounty Skulls on a Ship for the first time gives Emissary Grade Reputation to Trading Company Emissaries representing the Order of Souls or Reaper's Bones.
Bounty Skulls can be placed inside any Container Chests. These Chests hide their glow and allow Players to carry up to three small Treasure items.
All Bounty Skulls emit a Green Glow from a distance.
All Bounty Skulls constantly whisper to anyone close to them.
Bounty Skulls can be caught with a Harpoon.

Commendations

Commendations
Image	Commendation	Requirements	Rewards
	Hunter of Fort Skulls	Deliver 60 Skeleton Fort Skulls to the Order of Souls. Grade I: 1 Grade II: 5 Grade III: 10 Grade IV: 30 Grade V: 60	Rewards the Hunter of Fort Skulls Title.
	Gathering Secrets	Sell 600 Order of Souls Treasures while flying the Order of Souls Emissary Flag. High Seas only Grade I: 120 Grade II: 240 Grade III: 360 Grade IV: 480 Grade V: 600	n/a
	Honoured Mystic	Sell 320 Order of Souls Treasures while flying a Grade 5 Order of Souls Emissary Flag. High Seas only Grade I: 60 Grade II: 120 Grade III: 200 Grade IV: 240 Grade V: 320	n/a
	Secrets Stolen	Sell 480 Order of Souls Treasures to the Reaper's Bones. High Seas only Grade I: 60 Grade II: 120 Grade III: 240 Grade IV: 360 Grade V: 480	n/a
	Plundered Prizes	Sell 600 of any Trading Company items while flying the Reaper's Bones Emissary Flag. High Seas only Grade I: 120 Grade II: 240 Grade III: 360 Grade IV: 480 Grade V: 600	Unlocks the Dawn Hunter instruments for purchase at Grade I, the Dawn Hunter equipment for purchase at Grade II, the Dawn Hunter clothing and vanity for purchase at Grade III, the Dawn Hunter weapons for purchase at Grade IV, the Dawn Hunter ship set for purchase at Grade V.
	Fearless Reaper	Sell 320 of any Trading Company items while flying a Grade 5 Reaper's Bones Emissary Flag. High Seas only Grade I: 60 Grade II: 120 Grade III: 200 Grade IV: 240 Grade V: 320	n/a
	Mystical Legend of the Strongholds	Sell 100 Stronghold Skulls as a Pirate Legend High Seas only Grade I: 1 Grade II: 10 Grade III: 25 Grade IV: 50 Grade V: 100	Rewards the Mystical Legend of the Strongholds Title.
	Legend of the Mystical Order	Sell 500 Bounty Skulls as a Pirate Legend High Seas only Grade I: 10 Grade II: 50 Grade III: 100 Grade IV: 250 Grade V: 500	Rewards the Legend of the Mystical Order Title. Unlocks the Legendary Tankard and Legendary Lantern for purchase.
	Mystical Master of Strongholds	Sell 10 Stronghold Skulls	+20