After the "Restless Spirits" Region Quest in Necropolis Halls in Chapter 8, on your second visit you can revisit previously visited corridors and discover previously missed secrets.
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00:00 - Cascades - Braziers Puzzle - Small Chest
02:01 - Vault of the Beloved - Candles Puzzle - Big Chest
04:16 - The Path of Sights - Bones Puzzle - 2 Big Chests
08:15 - Hollow Belfry Upper - Big Chest
10:31 - Vault of the Beloved Balcony - Big Chest