Who is Richetti? And who is he actually revealed to be in the end?
Richetti, full name is Signor Guido Richetti is a Italian archeologist. On chapter 28 Race reveals to us upon hearing the telegram about vegetables, potatoes, artichokes and so forth. That it was a secret code used in the South African rebellion. Potatoes stand for machine gun, artichokes stand for explosives. Race states that Richette is agitator who has killed more people in the past.
Good answer.
-Prof. Scanlan