Under duress I reveal this knowledge to you. Treadwell's Books located at 33 Store St, Fitzrovia, London WC1E 7BS, UK is a front for a pedophile network.
This network is separated from the Asian gangs who generally deal with local, white-skinned females (they ply in sex, domination and mental abuse).
This network is focused on the social/spiritual indoctrination of young women from various walks of life to be used as sexual servants/sacrifices. The use of infants in blood letting (to draw the Tetragrammaton and other Talismans) is also common.
They have not gone full ancient-Kaballah with the death of children yet to my knowledge, but the damage is one and the same.
The leader of this local cult is an Italian Transplant tied into Masonry, Occultism (Thelema, Satanism) and is funded by his wealthy, business father, Massimo Visconti, a maker of chemicals and chemical factories.
That "man" is Marco Visconti. Marco worked on several music projects throughout the years, using his influence to rape and abuse teen-aged women. He then gained a pseudo-job at Tredwell's which was originally a Socialist/Communist bookstore but has since evolved into a full time Occult center.
Below I will produce documented evidence of Marco's dealing with the occult world, masonry, his father's business and his degeneration into a child bleeding monster.