Relic Inventory Upgrades - Castlevania: Lords of Shadow 2 Guide - IGN

Although most Piles of Sacrifice contain Runes of Kleidos, there are a few scattered about the world that contain upgrades to the number of Relics you can

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Runes of Kleidos - Castlevania: Lords of Shadow 2 Guide - IGN

Castlevania: Lords of Shadow 2 - Playstation 3 : Konami of America: Video Games

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Castlevania: Lords of Shadow 2 - Relic Rune Pack – Official Konami Shop

Part 7.2: Finding the Second Acolyte - Castlevania: Lords of Shadow 2 Guide - IGN

Castlevania: Lords of Shadow 2, Castlevania Wiki

News - May, 2023

Chapter Two - Sanctuary Entrance Pt. 2 - Castlevania: Lords of Shadow Guide - IGN

Castlevania: Lords of Shadow 2 - Playstation 3 : Konami of America: Video Games

Walkthrough - Castlevania: Lords of Shadow 2 Guide - IGN