From the publisher: The creatures of the Darkness fear nothing in the four kingdoms, except the intelligent Nethervine that dwells within the Watcher's Woods. These parasitic stalks attach themselves to others, devouring what was and changing them into the dreaded Sycline. Sycline wield the "bones" of fallen lathi to destroy anything that comes near them, their great eye granting them unerring awareness in battle. This expansion requires Myth base game.