There are 3 books in the The Last Hours series. The newest book is Chain of Thorns which came out in 2023.

1
Chain of Gold

Book cover of Chain of Gold

From internationally bestselling author Cassandra Clare comes the first novel in a brand new Shadowhunters trilogy. Evil is hiding in plain sight and the only thing more dangerous than fighting demons is falling in love.

Cordelia Carstairs is a Shadowhunter, a warrior trained since childhood to battle demons. When her…

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2
Chain of Iron

Book cover of Chain of Iron

The Shadowhunters must catch a killer in Edwardian London in this dangerous and romantic sequel to the #1 New York Times bestselling novel Chain of Gold, from New York Times and USA TODAY bestselling author Cassandra Clare. Chain of Iron is a Shadowhunters novel.

Cordelia Carstairs seems to have everything…

3
Chain of Thorns

Book cover of Chain of Thorns
James and Cordelia must save London—and their marriage—in this thrilling and highly anticipated conclusion to the Last Hours series from the #1 New York Times and USA TODAY bestselling author Cassandra Clare. Chain of Thorns is a Shadowhunters novel.

All first edition hardcovers will include full-color reverse jacket art, ten…