ðɪs nˈɑːvəl diːtˈeɪlz ðɪ ˈɔːɹɪdʒˌɪnz ʌvðə tˈaɪm ˈeɪdʒənts ʌvðə fˈɪfti fˈɜːst sˈɛntʃɚɹi, fˈɜːst mˈɛnʃənd ɪnðə fˈoːɹθ dˈɑːktɚ sˈɪɹiəl ðə tˈælɑːnz ʌv wˈɛŋtʃjˈæŋ.
This novel details the origins of the Time Agents of the 51st century, first mentioned in the Fourth Doctor serial The Talons of Weng-Chiang.