The cloak and dagger world of government communications has thrown up an unlikely potential villain in Mark Adams, MD of The Communication Group's political division.
Last weekend Adams was accused by the Guardian of being a possible source for leaked minutes of Cabinet meetings where ministerial opposition to the Millennium Dome first emerged.
Although they are meant to remain secret for 30 years, minutes of meetings as recent as three years ago keep finding their way to the political editor of the Mail on Sunday, Simon Walters. He is a known associate of Adams, and thanks the TCG man on the acknowledgements page of his debut novel, Second Term, a Story of Spin, Sabotage and Seduction.
When contacted by the Guardian, Adams struck a light-hearted note. 'I am quite excited that the mole might be me,' he is reported as saying.
'It seems a shame to deny it categorically.'
He is a suspect on the grounds that he sat in on countless cabinet meetings during a six-year civil service spell at Number 10, including during the time the Dome's go-ahead was granted.
For now, at least, he is keeping a low profile.