Nia Davies has spent twenty-five years believing the strangest thing about Aberystwyth harbour is the people who work there. Then the water goes flat beneath a hard wind, salt appears in the café sugar and something under the harbour orders her to attend.

Her father refuses to explain. A suspiciously knowledgeable marine archaeologist keeps choking up seawater. And Nia’s missing mother may be connected to an ancient claim now being called in.

The sea has terms. Nia has objections.

Coming soon in the Annwniad series.