In the 19 books following "Cigars of the Pharaoh", Thomson and Thompson appear in 17 of them, not appearing in "Tintin in Tibet" or "Flight 714 to Sydney". In some of these books their role is minor – the duo's appearance in "The Shooting Star" is confined to two panels; they appear briefly only at the beginning of "The Broken Ear" (before being tricked into closing the case in the belief that the stolen object has been returned when it was actually replaced by a fake); and are imprisoned and face execution on false charges in "Tintin and the Picaros". During their other appearances, they serve as the official investigators into whatever crimes Tintin is currently investigating.Their final appearance was in Tintin and Alph-Art.