he is on vacation with a treasure-hunting tour group. When Gabriel has a private meeting with him in his room, he confides in him about his new case and learns that the group arrived on the same night as he did. While exploring the village and the surrounding area, Gabriel learns the kidnappers drove towards Rennes-le-Château in a black car, and recalls that they mentioned about the Holy Grail in French. When Hames' men arrive with Grace that evening, Gabriel tails them, witnessing them have a heated conversation with a local priest, and a mysterious meeting with local British scholar Larry Chester. Both he and Grace determine that the region's treasure, the Holy Grail and the kidnapping are connected, and opt to continue investigating despite James' instructions. The next day, Grace decides to investigate more about the region's hidden treasure, and joins the tour group. After visiting a number of sites and having lunch at a local winery, the group come across the brutally murdered bodies of James' men. When Gabriel visits the crime scene to find out more, he receives disturbing visions showing that the men were killed by vampires and drained of their blood. Although suspicious of the tour group and Larry, Grace suggests that he also meet the winery's owner, viticulturist Excelsior Montreaux, after raising concerns that there was something unnatural with him. Meanwhile, Grace continues her work into investigating the treasure and comes across an envelope containing Le Serpent Rouge – a document she overheard about on the tour, said to contain clues to locating the treasure – and begins work on deciphering some of its riddles. Later that night, Gabriel shadows Larry from his house, and witnesses him burying a manuscript detailing bloodlines connected to Jesus Christ. When he returns to the hotel, a disturbing nightmare causes Gabriel to overcome his fear, leading to him sleeping with Grace. On the third day, Grace resumes her work into Le Serpent Rouge, and eventually deciphers it completely to reveal that underneath the region is a hidden temple, identifying where it can be entered. Meanwhile, Gabriel concludes that the tour group are unconnected to the kidnapping, with Franklin, despite being disgusted to learn of what he did with Grace, revealing that he is on attachment to CIA, investigating secret societies in the region, with two others in the group investigating the area due to heightened interest by outside