Vezok and Avak in the Cavern of Historical Records.

The Cavern of Historical Records was the cavern where the history of Voya Nui and its Matoran villagers were kept. Most, but not all, of the records were destroyed by Vezok while he was searching for the Voya Nui Resistance Team and the remaining records were destroyed when Voya Nui returned to its original position on the Southern Continent.

Voya Nui
Fire Regions: Mt. ValmaiLake of LavaChamber of LifeLava Reservoirs
Water Regions: The Cape of No HopeLagoon EntranceMahri Nui (Formerly) • Voya Nui Bay
Village Regions: Matoran StrongholdMatoran VillageThe Jungle SanctuaryCanyon Fortress
Piraka Regions: Piraka StrongholdThe Chamber of TruthPiraka Outpost
Ignika Chambers: Staircase to the IgnikaThe Zone of NightmaresThe Chamber of DeathUmbra and Protodax's ChamberLava Chamber Gate
Other Regions: Ring of IceCavern of Historical RecordsDesert of SorrowsThe Green Belt
Lake of ProtodermisNui CavesStone Cord (Destroyed)