This sequel to Kinda is a fabulous Dr.Who story which works very effectively in every department and contains much impressive characterisation, acting and story telling. Janet Fielding excells as the possessed Tegan, making a superb villainess and the guest cast are all first rate. Best of all, Peter Davison is on top form, giving a startling and exuberant performance, full of energy, passion and enthusiasm. Sadly, some see him as ineffective, probably as stories like this portray him very much as the underdog, with those he meets pig-headedly ignorant and indifferent to his words of warning. It is more the case that the sitiation has been made bigger than the Doctor in order to generate real suspense and tension, rather than any lack of conviction or gravitas on the part of Davison. But it is perhaps not satisfying for fans of the old-school of domineering Doctor to see Davison's torrents of energy expending themselves upon people who simply ignore him or fob him off, like he's a minor pest. Still, he gets the last laugh in the end, because the Mara really does appear and the Doctor is the only one who can stop it. In this, he is triumphant! Overall, a great story and a great Doctor.