(Translated) publisher blurb This 144 pages supplement introduce the secrets of the Trinités universe, as well rules for the battlefields. Les Forces des Ténèbres presents the great occult forces against which the Trinités fight: the Harpail, the Harde and the Tehôn. The Harpail is the allie of the Snake. Initiated by Mordred, this dark knighthood whose only goal is to vanquish the Dragon. The Harde is the maleficient brood of the millenium. She dream of a total war. She reign with terror, manipulation of the weakest and of criminal networks. The Tehôns live hidden in the Darkness since the dawn of time. The are the Great Ancients of the Trinités universe, those that even H. P. Lovecraft saw in his nightmares. A GM screen is included with the book.