Runes are essential for upgrading your supernatural powers, while Bone Charms provide passive buffs. Both are hidden throughout every mission. The Heart, a mystical artifact given to you by the Outsider, will pulse and beat faster when you are near a collectible. Use the Heart frequently to locate these valuable items. Exploring off the beaten path and solving environmental puzzles often leads to these hidden treasures. Collecting them all is crucial for a powerful Corvo.
