Coming of Shadows was an audio adventure by Stuart Robinson and James Potter that served as a prequel to Summoned by Shadows. it is included in the bonus content of the "Summoned by Shadows" DVD.
Cain and Able — sent by the Preceptors to break the Estrangement Programme and reclaim the mighty Solomon. But unknown forces are working against them. This story is set before the events of Summoned by Shadows.