His role in Set in Darkness led one reviewer at the time to speculate “that in a few - preferably a good few - novels' time, a convulsive final secret will see [Rebus] and Cafferty locked together, disappearing over some Caledonian equivalent of the Reichenbach Falls.”
hɪz ɹˈoʊl ɪn sˈɛt ɪn dˈɑːɹknəs lˈɛd wˈʌn ɹᵻvjˈuːɚɹ æt ðə tˈaɪm tə spˈɛkjʊlˌeɪt “ðæt ɪn ɐ fjˈuː pɹˈɛfɹəbli ɐ ɡˈʊd fjˈuː nˈɑːvəlz tˈaɪm, ɐ kənvˈʌlsɪv fˈaɪnəl sˈiːkɹᵻt wɪl sˈiː ɹᵻbjˈuːz ænd kˈæfɚɾi lˈɑːkt təɡˈɛðɚ, dˌɪsɐpˈɪɹɪŋ ˌoʊvɚ sˌʌm kˌælɪdˈoʊniən ɪkwˈɪvələnt ʌvðə ɹˈaɪxənbˌɑːx fˈɔːlz.”