The Last Hours · Book 4

A Sea Change

by Cassandra Clare

Published
28 April 2026
Pages
112
ISBN-13
9781837841202
Type
novella

Buy on AmazonAll The Last Hours books in order

About this book

A Sea Change (28 April 2026, 112 pages, Titan Books) is a standalone follow-up novella set after the trilogy, not part of it: Matthew Fairchild, travelling aboard the ocean liner Majestic with his golden retriever Oscar Wilde, finds himself investigating a murder at sea. Optional reading, best saved until after Chain of Thorns.

Its place in The Last Hours

A Sea Change is book 4 in the The Last Hours series. It follows Chain of Thorns. See the full The Last Hours reading order.

Set roughly a generation after The Infernal Devices, The Last Hours follows Cordelia Carstairs, the daughter of a disgraced Shadowhunter family, as she arrives in London hoping to restore her family's honor by joining a marriage of convenience to her childhood friend James Herondale -- son of Will and Tessa from The Infernal Devices. When a sinister figure called the Lightwarden begins turning ordinary weapons into instruments of a demonic plague, Cordelia, James, and their circle of friends (many of them…

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