The ancient Ra’s Reliquary

Truth: /truːθ/ the quality or state of being true.
“he had to accept the truth of her accusation”

Entrust: /ɪnˈtrʌst,ɛnˈtrʌst/ assign the responsibility for doing something to (someone).
“I’ve been entrusted with the task of getting him safely back”

Relic: /ˈrɛlɪk/ an object surviving from an earlier time, especially one of historical interest.
“a museum of railway relics”

Mythology: /mɪˈθɒlədʒi/ a collection of myths, especially one belonging to a particular religious or cultural tradition.
“tales from Greek mythology”

Thingy: /ˈθɪŋi/ a person or thing whose name one has forgotten, does not know, or does not wish to mention.
“So… that means we’ve been carrying this come-back-to-life thingy all around the place!?”

Lead: /liːd/ a piece of information that may prove important
"police officers are still searching for leads"

Millennial: /mɪˈlɛnɪəl/ denoting or relating to a period of a thousand years.
“the current increase in hurricanes is only a small fluctuation within this longer millennial cycle”

Creepy: /ˈkriːpi/ causing an unpleasant feeling of fear or unease.
“the creepy feelings one often gets in a strange house”