From the publisher's website:
You are part of a team of unlikely heroes engaged in an international struggle to stop the gathering darkness. To do so, you’ll have to defeat foul monsters, travel to Other Worlds, and solve obscure mysteries surrounding this unspeakable horror. The effort may drain your sanity and cripple your body, but if you fail, the Ancient One will awaken and rain doom upon the known world. Eldritch Horror is a cooperative game for one to eight players, based on the fiction of H.P. Lovecraft and inspired by the classic board game Arkham Horror. In Eldritch Horror, investigators travel the globe in an urgent quest to save the world from a diabolical, omnipotent Ancient One. With four different Ancient Ones, twelve investigators, numerous monsters, and hundreds of possible encounters, every game provides an unique and epic adventure.