ɐ fˈɜːðɚ kəlˌæbɚɹˈeɪʃən bᵻtwˌiːn hˈɪkmən ænd ɹˈɑːbɚts fɚðə fˈɪfθ sˈiːzən ʌvðə sˈɛɹə dʒˈeɪn ɐdvˈɛntʃɚz hæd ɹˈiːtʃt skɹˈɪpt stˈeɪdʒ wɛn nˈuːz ʌv ᵻlˈɪzəbəθ slˈeɪdənz ˈɪlnəs ɹˈiːtʃt ðə pɹədˈʌkʃən tˈiːm ænd wˈɜːk wʌz hˈɔltᵻd.
A further collaboration between Hickman and Roberts for the fifth season of The Sarah Jane Adventures had reached script stage when news of Elisabeth Sladen's illness reached the production team and work was halted.