Ah, you want dark ... this is dark. Well within the spirit of the Lovecraftian tradition and an added dash of American FBI TV drama with serial killer characteristics. Alan Moore even gets in a bit of Kenneth Grant on the side. 
 However, since many of you in America have more of a problem with sex than gory violence, be warned ... this is a work of sexual horror with explicit scenes of truly unpleasant sexual violence. 
 The scene of reptilian jissum flying through a wide arc as the FBI heroine jerks off the monster to save herself from yet another rape is not for the faint-hearted. There is a certain Sadean quality to one long section. 
 Moore is, as he gets older, increasingly interested in the sexual imagination and it is not unconnected to his interest in magick. For him, magick is creating something out of nothing and extreme sexual imagination is magick. 
 From Promethea through Lost Girls to this, the intensity grows but it is an honest intensity that should disturb the reader not as wrong or sick but as an expression of the wild capabilities of the full imagination. 
 There is also a genuine twist to the usual Lovecraftian story line that any aficionado of the horror genre will pick up as a borrowing from another trope of demonic literature (no spoilers here). 
 Let us just say that hybridisation is a theme that turns back on itself as the hybridisation of literary memes into new creative activity. 
 This graphic novel is genuinely horrific and far from 'adolescent'. Moore is also well served by the classic comic book style of Jacen Burrows which captures the Lovecraftian iconography of the tale well. Recommended but with the standard caveat that it is for mature minds only.