Having gone with Captain Haddock to the hotel where General Alcazar is staying in order to give him the wallet he lost practically before his eyes a few hours earlier, Tintin spots him in the company of an individual whose background he knows too well not to decide to shadow him at once. After taking a cab in the wake of the luxury sedan in which the general's interlocutor had boarded, the young man soon found himself on the outskirts of the city. The luxury sedan in question was a 2.4 or 3.4-liter Jaguar.