ɹᵻbjˈuːz ɹᵻtˈaɪɚz ɪn ˈɛɡzɪt mjˈuːzɪk, ðə sˈɪksθ ɹᵻbjˈuːz bˈʊk ˌɔn fɹʌm sˈɛt ɪn dˈɑːɹknəs, ðˌoʊ ɪn fˈækt ðə sˈɪɹiz hɐz kəntˈɪnjuːd ˈæftɚ hɪz ɹᵻtˈaɪɚmənt.
Rebus retires in Exit Music, the sixth Rebus book on from Set in Darkness, though in fact the series has continued after his retirement.