Blue Sentinels Covenant
Lore
The Blue Sentinels are a defensive Covenant formed to protect members of the Way of Blue Covenant. You unlock the Blue Sentinels by speaking with Horace once you reach the Road of Sacrifices.
If you choose to take up their cause, you will be summoned automatically into a Way of Blue member’s game if a hostile player is attacking them. Defeating hostile Red Phantoms earns you the Proof of a Concord Kept, which can be turned in later in the game at the Darkmoon Covenant leader for rewards.
Theories
Why They Exist
Sources
NEXT: Mound-Maker Covenant