Brendan Seamus O'Brien was a children's author who penned the popular series The Witches of Turnham Green.


Brendan was born in Dover. He originally trained as a hairdresser, only writing in his spare time to write stories for his children Benedict and Martin. One of his stories was seen by a family friend who worked in publishing, who recommended submitted it to the publishing house Ostrich Books. His first novel was published in 1988.

He died at the age of 64.


Brendan Seamus O'Brien was mentioned in the Sherlock episode The Sign of Three.

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