* Campion's entire part in the attempted breakout from Black Dudley, all done after having been tortured.
** Campion making a fool of the big bad at the breakfast table (involving an egg) in that same book.
* Mr. Campion's salvage of the rescue of Biddy Paget, after his more hot-blooded friends deviate from the plan and go on a doomed RoaringRampageOfRescue.
* Canon Avril, CoolOldGuy and BadassPacifist, purposely AloneWithThePsycho serial killer in order to try to talk him down. While not immediately effective, Avril's words are what lead to the killer's defeat.
** In that same book, Amanda stalking said serial killer in order to get a good description of him to the police, and hopefully save her friend who the killer is after.
* Amanda figuring out who the murderer is in "More Work for the Undertaker" while only hearing about the case from the papers and brief letters from Campion.
* This description of Mr. Campion in the final story Margery wrote:
-->In his own apologetic way Mr. Campion was a celebrated figure. In his time he had performed a number of services for a great many causes. He was a negotiator and an unraveler of knots, and there were still people who suspected, because of his wartime activities, that he had a cloak and a dagger somewhere concealed. Those who disliked him complained that he seemed negligible until it was just too late.