I feel that she was a child-genius like Ramanujan, but was unfortunate to be not "discovered" by a mentor like G.H.Hardy. She had great memorization skills and logical thinking, so obviously excelled at writing puzzles' books. It's a pity that her contributions to modern mathematics is zilch. I still wonder why didn't she take up number theory. She went into astrology (yea, not astronomy), which is still debated as a pseudo-science. She could've done so much, but alas it's too late now. But well, each person to his own, each -ology to itself. RIP.