"The Book of the Forgotten is amazing," Eva says, eying the tome warily. "But I'm not afraid to say that it gives me the creeps."
"Somehow it knows whether the pages you're adding are Spectral or Manifested." She shakes her head in disbelief. "How could it know a thing like that?! It's unnatural."
"Best to keep it happy," Eva continues. "Collect Spectral Pages, manifest them by fighting your way through Haunted Sectors, then add the Manifested Pages to the book…"
"If you dare," she adds with a wink.