▁but ▁the ▁title ▁of ▁E pisode ▁ 2 ▁was ▁allowed ▁to ▁remain ▁only ▁at ▁script ▁editor ▁Donald ▁T osh ' s ▁ins istence . ▁A ▁number ▁of ▁chap ters ▁in ▁the ▁novel isation ▁have ▁titles ▁based ▁around ▁these ▁pun s . ▁ ▁Donald ▁Cot ton ▁pulled ▁material ▁for ▁his ▁scripts ▁from ▁his ▁extensive ▁knowledge ▁of ▁classical ▁and ▁medieval ▁literature , ▁including ▁the ▁ep ics ▁of ▁H omer , ▁the ▁plays ▁of ▁A esch yl us ▁and ▁Eur ip ides , ▁Vir g il ' s ▁A ene id , ▁and ▁Geoff rey ▁Ch au cer ' s ▁Tro ilus ▁and ▁Cr ise y de . ▁ ▁William ▁Hart nell ▁suffered ▁a ▁bere av ement ▁while ▁working ▁on ▁the ▁story : ▁the ▁death ▁of ▁his ▁A unt ▁B ess ie , ▁who ▁had ▁looked ▁after ▁him ▁during ▁his ▁trouble d ▁child hood . ▁Unfortunately , ▁the ▁tight ▁recording ▁sched ules ▁prevent ed ▁Hart nell ▁from ▁taking ▁time ▁off ▁to ▁attend ▁her ▁fun eral . ▁This ▁led ▁to ▁him ▁becoming ▁difficult ▁during ▁production , ▁ref using ▁to ▁speak ▁to ▁actors ▁Max ▁Ad rian ▁or ▁Francis ▁de ▁Wol ff ▁and ▁declaring ▁director ▁Michael ▁Le eston - Smith ▁a ▁" fo ol ". ▁ ▁Cast ▁notes ▁Bar rie ▁Ing ham ▁also ▁played ▁A ly don ▁in ▁the ▁film ▁Dr . ▁Who ▁and ▁the ▁D ale ks ▁( 1 9 6 5 ). ▁Francis ▁de ▁Wol ff ▁had ▁previously ▁played ▁Vas or ▁in ▁The ▁Ke ys ▁of ▁Mar inus ▁( 1 9 6 4 ). ▁T ut te