ðə dˈɑːktɚ bɪɡˈɪnz tə sˈʌfɚ fɹʌmðə lˈɔs ʌv hɪz sˈɛkənd hˈɑːɹt ɪn ðɪs nˈɑːvəl, ɐ plˈɑːt lˈaɪn ɹᵻzˈɑːlvd ɪn kˈæmɹə əbskjˈʊɹɹə.
The Doctor begins to suffer from the loss of his second heart in this novel, a plot line resolved in Camera Obscura.