His books were read. William James referred to Allen's The Evolution of the Idea of God (1897). Chesterton said of the same book that "it would be much more interesting if God wrote a book on the evolution of the idea of Grant Allen." Not only was Grant Allen read, but his income from the sale of his books allowed his family to winter in the south of France.
There are some biographical details here. Including:
In 1895, Allen's scandalous book titled The Woman Who Did (1895) contained startling views on marriage and kindred, which promptly became a bestseller.The British Barbarians (1889) is a bold social commentary. An African Millionaire(1897) is a set of 12 humorous light fiction stories portraying the con man as hero and is a strong contender for pioneering the crime writing genre.
Grant has a graceful way of analyzing class distinctions in his work. Miss Cayley's Adventures (1899) is a work of fiction and we quote a brief section on royal assumptions, in the context of Indian tiger hunting.
He drew himself up and opened his palms with a twinkling of pendant emeralds 'I am royal' he answered with naive dignity and the tiger is a royal beast. Kings know the ways of kings If a king kills what is kingly, it owes him no grudge for it. But if a common man or a low caste man were to kill a tiger-- who can say what might happen.