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Blood Rocks in Chalice Dungeons
1 Blood Rock available per Chalice type: Pthumeru, Loran and Isz (NOT Hintertomb)
Great One's Wisdom will replace Blood Rocks, (just like runes), if already obtained in that Chalice type.
This limitation does not reset upon entering NG+(+).
Rumored to reset upon some trigger, or through PvP victories, but none confirmed.
Pthumeru Chalice Blood Rocks
Pthumeru Ihyll: Glyph: jrwffkyp. Just after Chamber of the Seal, before main area.
Sinister Pthumeru Ihyll Root Chalice: Glyph: u6d8itwm.
Loran Chalice Blood Rocks
Rotted Lower Loran Chalice: Glyph 4292egu2, Layer 1 (In side area after seal but before second lantern).
Rotted Lower Loran Chalice: Glyph 7guktqyg, Layer 1 (In the side area before the boss room).
Isz Chalice Blood Rocks
Isz Root Chalice: Glyph rr4jfbys, layer 3. Located through the bonus room past the boss gate.
Isz Root Chalice: Glyph fsieuy9x,, layer 3.
Isz Root Chalice:Glyph wbgypzky, layer 1. The blood rock is in the very first forked path, before the second lantern. A very straightforward path, there's a regular zombie, some spiders and a brainsucker on the way to it.