A large submerged preservation vault located beneath the eastern maritime halls of the archive. Access is gained through a sequence of iron preservation doors marked with maritime sigils and worn spiral carvings. The chamber exceeds expected architectural dimensions and contains flooded platforms preservation vessels hanging chain systems and large circular mechanisms extending beneath black seawater. Initial investigation confirms the location functions as a sanctuary and preservation environment rather than a containment facility. Multiple preservation markers throughout the chamber indicate long-term care and stabilization activity associated with unidentified maritime entities. Whale-song resonance phenomena have been documented within the structure and appear linked to previously catalogued maritime artifacts. The vault remains partially flooded and operational. Further investigation required.