“Mithras was born from rock,” Annabeth said, hoping she was right. “He emerged fully grown from the stone, holding his dagger and torch.” The screaming and wailing told her she had guessed correctly. “The big mother knows all!” a ghost cried. “That is our most closely guarded secret!” Then maybe you shouldn’t put a statue of it on your altar, Annabeth thought. But she was thankful for stupid male ghosts. If they’d let women warriors into their cult, they might have learned some common sense.

