[written by Richard Walker ...[et al. [written by Richard Walker ...[et al.]]. [written by Michael Allaby ... et al. [written by Clive Barker ... [et al.] [written by Fiona Watt ... [et al. [written by Val Warke...[et al. [written by Amy Balfour ... [et al. [written by Fiona Watt ... et al. [written by Jan Astley ...[et al. written by Fiona Watt ...[et al.