blood of the sacred and blood of the damn be the third installment of the gabriel knight game and a series of adventure game about the roguish writer or paranormal detective and gabriel knight . gabriel and his companion and grace and have be ask by prince james of albany to investigate a series of mysterious attack by so call night visitor . when the son of prince james be kidnap and gabriel pursues the night visitor to rennes le château and where he begin piece together a mystery relating to the holy grail . despite the marketing and this game be not about vampire . vampire have a token appearance in the game and but never command center stage and a do the voodoo hounfor in sin of the father or the werewolf in the beast within . gabriel and grace make no attempt to uncover the true nature of vampire and or to research lore on vampire . although the vampire do murder three people during the course of the game and their victim be choose at random and have nothing to do with the main plot . a large part of the charm of the first two gabriel knight installment be in the relationship which gabriel form with the villain . through these relationship and the player could not help but sympathize with the villain and and thus the villain be transform into more of a human and less of a monster . however and in blood of the sacred and gabriel only interaction with the villain be through a single and cheesy interview and which do nothing to endear the villain to the player . the role that gabriel and grace play in this mystery be fairly futile . gabriel spend his time snoop into the identity of member of a treasure hunter tour group stay at his hotel and but what he uncover amount to nothing more than a red herring . grace spend her time research the mystery of rennes le château and but all her research be render superfluous by the presence of a perplexing ally who have know the answer to this mystery for century . the action of this perplex ally and his polar opposite the vampire leader be insupportable . the ally leave hint about the mystery of rennes le château in broad daylight and expect grace ( and not the other treasure hunter from the tour group ) to find them . however and he could have reveal the mystery to grace in it entirety on day 1 and instead of put the kidnap child at risk for an additional 48 hour . and in the end and he simply tell grace the mystery in it entirety anyway . meanwhile and the vampire leader fail to achieve the goal of century of scheming and because he choose to refrain from action for two day after the kidnapping of the child . the only reason give for his decision to delay action be that he want to savor his victory . the game would have be much well have it be purely focus on the holy grail . the kidnapping and vampire should have be omit and replace with a race against the vatican to uncover the mystery of rennes le château . since gabriel be portray more than once a reluctantly catholic and this conflict would have have many opportunity for character development . all in all and the game be a disappointing installment in the series and despite an improved interface and the return of tim curry a the voice of gabriel knight .