Religious extremists are exploiting lax home education laws to expose children to hate-filled material at scores of unregistered "schools" and secret teaching groups.
Extremist texts seized from illegal schools allege that homosexuality is an "abomination", that sodomy is punishable by death and that a wife cannot "refuse sexual intercourse without sound reason".
Boys and girls could marry once they reached puberty, one document seen by The Times states. It also blames rapes on the way women dress, saying: "If a sweet thing is left uncovered, swarms of dirty creatures are liable to prey upon it and corrupt it."
At least 350 unregistered schools have been set up across Britain, according to Ofsted, the education regulator.