Reporter and writer Horatio Morpurgo launches his brand new book 'A Guide to the Unconformity' at The Gateway Theatre Seaton for a one-off event.

When a schoolboy found the Lyme Bay astrolabe in 1967, a story which should have made headlines instead vanished from local memory. More than fifty years had passed before writer and activist Horatio Morpurgo began to ask why. The more he learnt about this rare navigational instrument and its recovery from the sea near his home, the more intrigued he became. 

The trail leads over unstable cliffs to dissenting chapels and a neglected story about Atlantic slavery and empire. Marine conservation, Extinction Rebellion and the politics of immigration: all have their say. 

He encounters sea fans, Mary Anning’s ink, John Fowles’ writing studio – and beneath these, fault lines as deep in the geology as they are in the culture. A Guide to the Unconformity is what happens when you ask a question of one short stretch of the coastline, then wait long enough for it to answer. 

Giving an illustrated talk about the book and history, Horatio will then open the discussion to the floor. Books will be available for signing.

Thu 23 Apr 2026

The Gateway Theatre Seaton

Days
Hours
Minutes

Literature (Talk)

£5.00

12+

Doors & Bar will be open 60 minutes before show.

Running Time: To be confirmed.

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BOX OFFICE

Thursday 23rd April 2026

19:30

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