In dire need of help, the Sorensons question where to turn. The Sphinx has always given sound advice but is he a traitor? Inside the Quiet Box, Vanessa might have information that could lead to a cure but can she be trusted?
Meanwhile, Kendra and members of the Knights of the Dawn must journey to a distant preserve and retrieve another hidden artifact. Will the Society of the Evening Star recover it first? Will the plague eclipse all light at Fablehaven? Find out in Fablehaven: Grip of the Shadow Plague.