Dr. Z was lead by North Wales university professor Keith Keyes, who handles keyboards (harpsichord, piano, organ), as well as vocals, with Bob Watkins on drums, and Rob Watson on bass. This is another album, like Black Widow's Sacrifice, that featured lyrics that flirted with the occult in a prog rock setting. Here Keyes had the idea that in the afterlife, your soul is divided in to three parts, with a Latin term to each, Spiritus, Manes et Umbra.

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