The runescroll of bloodbark is a scroll obtained from chests within the Shade Catacombs, in which higher tier chests give a higher chance of obtaining the item. Reading the scroll unlocks the ability to craft bloodbark armour from splitbark armour.
When reading the scroll, the player is prompted to confirm whether they wish to learn from the scroll, and doing so will result in the chatbox message stating "Reading through the scroll reveals the secret to infusing Splitbark armour with Blood runes at a Blood altar to create Bloodbark armour!" Once the player reads the scroll, the chatbox message will state "As you close the scroll it starts to disintegrate in your hands."
If players attempt to read a scroll after unlocking the ability to make bloodbark armour, the chatbox message will state "You've already gained the knowledge to infuse Splitbark armour with Blood runes."
For an exhaustive list of all known sources for this item, see here
|Black key black||N/A ||1||1/372.2; 1/368.35|
|Black key brown||N/A ||1||1/376.07; 1/372.2|
|Black key crimson||N/A ||1||1/374.13; 1/370.28|
|Black key purple||N/A ||1||1/370.28; 1/366.43|
|Black key red||N/A ||1||1/378; 1/374.13|
|Gold key black||N/A ||1||1/103.73; 1/99.71|
|Gold key brown||N/A ||1||1/107.73; 1/103.73|
|Gold key crimson||N/A ||1||1/105.73; 1/101.72|
|Gold key purple||N/A ||1||1/107.73; 1/103.73|
|Gold key red||N/A ||1||1/109.74; 1/105.73|
|Silver key black||N/A ||1||1/148.47; 1/144.49|
|Silver key brown||N/A ||1||1/152.46; 1/148.47|
|Silver key crimson||N/A ||1||1/150.5; 1/146.48|
|Silver key purple||N/A ||1||1/146.48; 1/142.5|
|Silver key red||N/A ||1||1/154.45; 1/150.47|
|Steel key black||N/A ||1||1/1,212.2; 1/1,208.84|
|Steel key brown||N/A ||1||1/1,215.61; 1/1,212.2|
|Steel key crimson||N/A ||1||1/1,213.9; 1/1,210.52|
|Steel key purple||N/A ||1||1/1,210.52; 1/1,207.18|
|Steel key red||N/A ||1||1/1,217.32; 1/1,213.9|