We think we know the history of Earth, but there are secrets beyond our consciousness and truths that threaten to undo our understanding of the universe. When famed historian Alejandro Vela discovers one of these secrets - the ruins of an ancient and forgotten Aztec city - it sets in motion a plot that could unravel the fabric of time itself.

In The Forgotten Age Campaign Expansion, one to four researchers take part in an expedition to explore these ruins, deep within dangerous rainforests and forbidden caves. Will they survive this dangerous journey or will it be their downfall?

This expansion combines all the campaign and scenario content from the original The Forgotten Age cycle, the third cycle of expansions for Arkham Horror: The Card Game. Players only need a copy of the Arkham Horror: The Card Game Revised Core Set to dive into the story.