Buy it!
Both “Typhoon Pilot” and “One more hour” are worth buying. The exploits covered by “Typhoon pilot” are pretty self explanatory, but “One More hour” also covers Scott’s earlier WW2 experiences, including time on nightfighter Hurricanes, which includes working with the “Turbinlite” Havocs.
Both are on my bookshelf, and both have been read and re-read many times.
At £3.50 it’s a bargain.
Paul F