So what were those F16s doing low over Cambridge? Why did the Norfolk coast move in the night? Or strange stars suddenly start blinking on the screens of SETI? Could Frank, in his hi-tech wheelchair, crack the problem? Or was it all down to Chrissie, with

So what were those F16s doing low over Cambridge? Why did the Norfolk coast move in the night? Or strange stars suddenly start blinking on the screens of SETI? Could Frank, in his hi-tech wheelchair, crack the problem? Or was it all down to Chrissie, with