Lilias Trotter moved from England to Algiers in 1888, at the age of 35, and died there in 1928. In the latter stages of her mission there, she wrote specifically for Muslims influenced by mysticism. Lilias based The Way of the Sevenfold Secret on Christ's seven 'I am' sayings in John's gospel, and attempted to link them to the traditional seven steps taken by members of Sufi orders in their quest for union with God. This republication should enable readers to capture the essence of a woman whose legacy is vitally alive for our times.