In 'Lyonesse Revisited', the waters that closed in on Dan in 'The Waters of Avalon' have not receded - Sedgewater lies marooned, and Dan finds his personal life taking unexpected turns. Accepting his friend Karen's offer of a 'safe harbour', he helps her to cope with her father's final days. Meanwhile, the undertow of previous relationships pulls him back into familiar conflicts.
Beneath these private reckonings runs a deeper unease: a growing certainty that the world is going under, with the odds increasingly stacked against human survival. The creeping tide worldwide is accelerating and the children of Dan's generation strive to find ways to adapt to the unrelenting forces of nature that human activities have released.But what are the rules now? And what will 'survival' look like as previous ages are being irretrievably swept away..?