Blasphemous

Collectibles refer to the various bone remains of characters that you can find in your travels. You should find all of them easy enough, as none are particularly hidden or in the vicinity of other "more important" items.

Brotherhood of the Silent Sorrow:

• Metatarses of Rikusgo, the Traveller

The Holy Line:

• Clavicle of Dalhuisen, the Schoolchild

Albero:

• Calcaneum of Persion, the Bandit
• Phalanx of Brannon, the Gravedigger

Wasteland of the Buried Churches:

• Phalanx of Arthur, the Sailor
• Capitate of Barock, the Herald

Mercy Dreams:

• Maxilla of Tarradan, the Cleric
• Cervical Vertebra of Zicker, the Brewmaster
• Pisiform of Hernandez, the Explorer

Desecrated Cistern:

• Scaphoid of Fierce, the Leper
• Humerus of McMittens, the Nurse
• Hyoid Bone of Senex, the Beggar
• Navicular of Kahnnyhoo, the Murderer

Where Olive Trees Wither:

• Radius of Helzer, the Poet
• Coccyx of Daniel, the Possessed

Graveyard of the Peaks:

• Anklebone of Weston, the Pilgrim
• Occipital of Tequila, the Metalsmith
• Parietal Bone of Lasser, the Inquisitor

Convent of Our Lady of the Charred Visage:

• Sternum of Vitas, the Performer
• Phalanx of Miriam, the Counsellor

Mountains of the Endless Dusk:

• Metacarpus of Hodges, the Blacksmith

Jondo:

• Scapula of Carlos, the Executioner
• Vertebra of John, the Gambler
• Vertebra of Lindquist, the Forger

Grievance Ascends:

• Frontal of Martinus, the Ropemaker

Patio of the Silent Steps:

• Fibula of Rysp, the Ranger
• Triquetal of Luca, the Tailor

Library of Negated Words:

• Sacrum of the Dark Warlock
• Tibia of Alsahli, the Mystic
• Phalanx of Aralcarim, the Archivist

The Sleeping Canvases:

• Kneecap of Sebastien, the Puppeteer
• Nasal Bone of Charles, the Artist

Mother of Mother's:

• Trapecoid of Yeager, the Jeweller
• Coxal of June, the Prostitute
• Trapecium of Jeremiah, the Hangman
• Femur of Karpow, the Bounty Hunter

Archcathedral Rooftops:

• Lunate of Keiya, the Butcher
• Ribs of Sabnock, the Guardian

Wall of Holy Prohibitons:

• Ulna of Koke, the Troubadour
• Phalanx of William, the Sceptic
• Hamate of Vukelich, the Copyist
• Jaw of Ashgan, the Inquisitor
• Temporal of Joel, the Thief
• Phalanx of Zeth, the Prisoner

Getting all collectibles and putting them back in the Ossuary in Albero rewards you with the trophy and the 'Warden of the Ossuary' aspect (outfit).