City Diary: The mystery of the Bank of England's 'missing' 100,000 bars of gold Operating profits aren't the only thing going up in the world at Aviva. The insurer's finance chief, Patrick Regan, has moved into the 22nd-floor corner office occupied by Aviva's former leader, Andrew Moss, before shareholders called for his scalp last spring. Regan's new quarters give him enviable views of St Paul's Cathedral. But he doesn't necessarily have the best seat in the house. For those keeping score in the "my corner office is bigger than yours" wars, rest assured that Aviva's new chief Mark Wilson has equally spacious accommodation. Stayput can cling on no longer The plot of the legal showdown between inventor Debbie Forster and Kate Bleasdale has taken yet another twist. In April, Forster made a statutory demand for the £3.6m costs plus damages a High Court judge has ruled she is owed by Bleasdale and her husband, John Cariss, for her unfair dismissal by Bleasdale from the company Forster founded, Stayput Solutions. Now Stayput, which these days goes by the name of Attach A Tag, has been put into administration and sold to the highest bidder, after the administrators decided it "could no longer trade due to its liabilities." Not surprisingly, buyers didn't all rush at once. New owner Tag Worldwide's £18,000 bid was the only offer on the table. Hamilton Bradshaw, the private equity recruitment firm, prides itself on "investing in people with passion." But it is rather lukewarm on the subject of why the company's finance chief, Andy Sumner, has left the company after just over a year. "I am really not going to disclose anything," said a colleague when Diary asked what Sumner, a KPMG alumnus who joined the business last May, will do next. Why the big mystery? Jim Mellon finds partner in crime Biotech investor Jim Mellon is set for a thrilling time when he makes a trip to the Edinburgh festival later this month. Mellon has a dinner date at the Italian restaurant Centotre with the crime writer Ian Rankin, after befriending the author when he won a charity auction prize to appear as a farmer in Rankin's eighteenth Inspector Rebus novel, Standing in Another Man's Grave. Watch this space to see how the next chapter of this unlikely literary partnership unfolds...