Keith Dewhurst's re-examination of man and myth is a long way from Camelot in every sense. Focusing on a Britain struggling to discover its national identity in the century following the fall of Rome and the departure of the Roman legions from these shores, Dewhurst offers a theatrical antidote to the romance of Mallory, instead painting a portrait of a cold, dark world where the flawed Artorius tries to do what's right without a round table anywhere in sight. Mind you, his moody wife Guenhumara (that's Guinevere to us) does seem to have a hotline to the future via a mobile phone given to her by shape-shifting narrator Merlin, and Tennyson is to be found strolling around in the mists of time.
There is imagination at work and there are moments in the second half when the show finds focus. But for much of the time it stumbles around in the dark ages and is keener on history than drama. Several performances fail to make the grade, but Ann Firbank is superb as the unyielding Lady Julia, and Francis Kennedy's Artorius is a mixture of idealist and pragmatist who in his justifications of war sounds like Tony Blair.
· Until December 9. Box office: 020-7503 1646.
