In 2002, Si Hunt and Simon Hart were asked to write a story for the Doctor Who fiction website Doctor Who: The Legacy. The pair wrote the story, Echoes of the Protii, together at Si Hunt's house, hammering out each episode with both of them round the keyboard. Si Hart later came up with an idea for a further story, Soap of Fatal Death, which Si Hunt helped him write. The CD also contained a "Making Of" documentary (as the story had an odd number of episodes something was needed to fit on the end of the second disc) containing out-takes and interviews with the performers.