Lammas is the third instalment of 1588: A Calendar of Crime, a collection of short stories published in step with the sixteenth century calendar.

Lammas day, a day of celebration for some. Elspet, a serving girl at the harbour inn has been told for years by the inn's owner, Walter Bone, that she is ugly and that no man will ever want her. Then, after years of being shut away from the world she unexpectedly catches the attention of a young labourer and realises she has been lied to all these years. She meets her lover in secret at the Lammas day fair, but her dalliances do not go unnoticed . . .

Hew Cullan finds himself retained by a man with a mind for murder. Walter Bone makes clear his intent to kill Elspet's lover, and seeks Hew's help to ensure his will is upheld when he is inevitably hanged for the act. But his jealousy has unexpected consequences. When Elspet disappears without a trace several innocent fair-goers and patrons are dragged into a web of suspicion, rumour and accusation. It falls to Hew to unravel the twisted threads and figure out the truth of the matter.