"Nicky Roth should be happy--he's finally proven that his best friend, Aaron, and Aaron's younger sister, Mya, are missing. Better yet, the polic

It's been four months since Nicky Roth has seen his best friend and neighbor, Aaron Peterson. Aaron's father, a reclusive theme park designer, to

When the goddess Artemis goes missing, she is believed to have been kidnapped. And now it's up to Percy and his friends to find out what happened