Unseen Forces are at work in the first expansion for Elder Sign, the cooperative dice game set in the world of H.P. Lovecraft's weird fiction. Mysterious powers subtly grant blessings and level curses at your investigators, while Master Mythos cards present horrifying new challenges for veteran players, and Entrance Cards offer players new options and new locations to visit. Two custom dice along with new Ancient Ones, investigators, monsters, and adventures await in Unseen Forces!