"The Acheron Pulse"@en . . . . . . . . . . . . . . "The Acheron Pulse"@en . . . . . . . . . . . . . . . . . . . . . . "36562807"^^ . "2011"^^ . "166"^^ . . . . . . . "October 2012"@en . . . . "The Acheron Pulse is a Big Finish Productions audio drama based on the long-running British science fiction television series Doctor Who."@en . . . "1119970997"^^ . . "The Acheron Pulse is a Big Finish Productions audio drama based on the long-running British science fiction television series Doctor Who."@en . . . . . "Rick Briggs"@en . . . . . . . . . . . "7"^^ . . . . . "Urgent Calls and The Marian Conspiracy"@en . . .