The troubled spirits of the dead cry out and ghosts stalk the midnight streets of Arkham. Abandoned portals gape open between our existence and the horrific unknown and even in the legendary French Hill neighborhood, the Order of the Silver Twilight plots their way to greater power.

This new expansion takes investigators to the classic French Hill neighborhood and sends them beyond our reality into the depths of the terrifying Underworld. Two new double-sided map tiles bring the older regions of Arkham, Massachusetts to life, including the aforementioned French Hill neighborhood and the Underworld itself. Four more investigators join the party, ranging from steadfast soldier Mark Harrigan to confident flyer Winifred Habbamock. The investigators' work won't be easy - this expansion brings three all-new scenarios into the fold, challenging investigators with restless spirits, secret cultists, and the depths of the underworld itself. Featuring over 130 new encounter and event cards, new assets, monsters, conditions, and a new map tile type, Secrets of the Order opens a portal to a wealth of content, drawing you into some truly terrifying stories.

This is not a standalone product. It requires the Arkham Horror Third Edition Core Set to play.