Fated (Book #11 in the Vampire Journals)
Various theories have the library being built there by aliens, by a civilization ten thousand years old, or by a race of vampires.
Caitlin let the book fall from her lap, her mouth open in shock, and it landed with a thump on the floor. She sat straight up, feeling a jolt. She suddenly felt wide awake, as if she had just lost all sense of time and place. She picked the book up again, her throat dry, and read the words again and again, desperately, like a castaway starving for water.
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