Thunderstorm at Night

George Eric Mackay was an English minor poet, now remembered as the sponging half-brother of Marie Corelli, the best-selling novelist. Mackay and Corelli, born Mary Mackay, were the children of Charles Mackay, by different mothers.

As a poet he is described as "execrable", and reliant on Corelli's promotion of his works. Mackay achieved some reputation in his time for Letters of a Violinist (1886). It sold 35,000 copies; he repaid Corelli's efforts by implying he wrote her novels. - Summary by Wikipedia