That was when the telephone rang. The Doctor picked it up grumpily, knowing exactly who was on the other end.

‘You know, Brigadier, a chap can’t be expected to do any useful work if⁠ —’

‘[…] We’ve found something. I’d rather like you on site before we bring in the big guns.’

‘The big guns, Brigadier? I bet you can barely contain yourself.’

‘There’s a helicopter on standby. I’d like you aboard it, with me, in five minutes.’

‘For pity’s sake, man. Aren’t you going to give me at least some explanation?’

‘Crabs,’ the Brigadier said succinctly.