Mary had told me to run the number-three engine periodically and left instructions on how to do so in the form of a checklist. I didn't know how to fly but did know a thing or two about engines – and needed an excuse to talk to Randolph. I sat in the pilot's seat and looked along the wing to the engine. The cowlings were off and the large radial was streaked with oil and grime. It never rained here, which was just as well, although things didn't actually age either so it didn't matter if it did. I consulted the checklist in front of me. The engine would have to be turned by hand to begin with and I didn't really fancy this, so got a slightly annoyed Randolph out on the wing.

'How many times?' he asked, turning the engine by way of a crank inserted through the cowling.

'Twice should do,' I called back, and ten minutes later he returned, very hot and sweaty with the exertion.

'What do we do now?' he asked, suddenly a lot more interested. Starting big radial engines was quite a boy thing, after all.

'You read it out,' I said, handing him the checklist.

'Master fuel on, ignition switches off,' he read.

'Done.'

'Prop controls fully up and throttle open one inch.'

I wrestled with the appropriate levers in a small nest that sprouted from the centre console.

'Done. I had Mr Fnorp round this morning.'

'Gills set to open and mixture at idle cut-off. What did that old fart have to say for himself?'

I set the gills and pulled back the mixture lever.

'He said he thought you could do a lot better than you have been. What's next?'

'Switch on fuel booster pump until warning light goes out.'

'Where do you think that is?'

We found the fuel controls in an awkward position above our heads and to the rear of the flight deck. Randolph switched on the booster pumps.

'I don't want to be a featured character,' he said. 'I'll be quite happy working as a mature elder male mentor figure or something; there is call for one in Girls Make all the Moves.'

'Isn't that the novel Lola will be working in?'

'Is it?' he said, feigning ignorance badly. 'I had no idea.'

'Okay,' I said as the fuel pressure warning light went out, 'now what?'

'Set selector switch to required engine and operate priming pump until delivery pipes are full.'

I pumped slowly, the faint smell of aviation spirit filling the air.

'What's this love/hate thing between you and Lola?'

'Oh, that's all well over,' he said dismissively. 'She's seeing some guy over at the Heroes Advanced Classes.'

I stopped pumping as the handle met with some resistance.

'We have fuel pressure. What's next?'

'Ignition and booster coil both on.'