The crossroads may make for an ideal outdoor ritual area, ceremonial grounds, especially by a tree, wherein litany from The Satanic Bible may be spoken, both as a formative initiation, Baptism, and subsequent rites of darkness.
There are thirteen coffin-shaped clocks throughout Bloodthorn Manor. Upon striking 13 o' clock, the "hell knell" emanates The Devil's Tritone, which stirs the demonic ether, effecting the resident lamps accompanied by an eerie wind, as the crowning horned skulls' eye sockets glow with an incandescent illumination. Each ticks at a heartbeat's tone while the pendulum features an inverse cross, and through tinted glass, leads into subterranean chambers down spiral staincases into The Noctuary Shadow Chamber deep below, where the dread rites are performed.
The Ritual. The Shadow Priest officiates before The Black Altar, as 13 robed figures emerge from the darkness into the infernalight of thirteen candles encircling The Pentagram upon the Chamber floor, each taking up a crystal skull. Upon the Wicked Words spoken, The Demons emerge, granted substance by the sulfur & brimstone-laden candle hellflames, from the looking glass and into the cranial oracles, then into the demon eyes opened, reawakening dread incarnations now seated in the flesh of the newly possessed. Demons released, the rite causes reverberations upon nearby sanctuaries defiled & enflamed.
* Those infamous who have archetypally personified The Devil one way or another, & dwell in halls of supreme villainy: LaVey, Tepes, Rasputin, Khan, Hitler, Manson, Ramirez, Crowley, Hannibal, DeSade, Bathory, Caligula, Nero...?