My guest this week has written a psychological thriller in which two former school friends confront a life-changing event from their past. To create their teenage years in the 1980s, the author delved into her own archives, discovering old mixtapes and an Elvis Costello LP whose sleeve contained a lyric sheet written out by a close friend. She was struck by the way music became less significant over the years. What had once been such a fierce marker of personal identity was now an emblem of a simpler time – though not necessarily for the characters in her novel. She is Women In Journalism advocate Meg Carter and she’s on the Red Blog with the Undercover Soundtrack for The Lies We Tell.