Book Series · 2 Books

Letters of Enchantment Books

In order from Divine Rivals to Ruthless Vows.

Rebecca Ross's completed romantic fantasy duology connects rival journalists Iris and Roman through magical letters as a war between gods reaches the front lines and their home.

Reviewed by the Bookroo Editors Updated August 19, 2026

Reading order

How to Read the Letters of Enchantment Duology

Read Divine Rivals first and Ruthless Vows second. Rebecca Ross identifies them as Books One and Two of the Letters of Enchantment duology and calls Ruthless Vows the conclusion.

Sources: Rebecca Ross's official Divine Rivals page, Rebecca Ross's official Ruthless Vows page.

For parents

What Parents Should Know

The romantic story unfolds amid wartime grief, missing family members, death, injury, frightening gods, battlefield danger, memory loss, and political manipulation. Iris also carries adult responsibilities while her mother struggles with addiction.

Iris and Roman's correspondence and relationship are central, but the books give equal weight to journalism, courage, loyalty, mourning, and the moral choices people make during war.

Where the story begins

First Book in the Series

Sale price

$1797

Book #1 · Chapter Book · Ages 14–17 · 2023

Divine Rivals

By Rebecca Ross

Rival journalists' letters spark a magical bond amid a divine war threatening their world.

357 pages· 106,995 words· Est. 10 hour read

$18.99Save 5%

Hardcover

Summary: Eighteen-year-old Iris Winnow battles to keep her family intact as gods wage war. Her brother is missing, and her mother is lost to addiction. Iris's letters to her brother mysteriously reach Roman Kitt, her rival at the Oath Gazette. Their secret correspondence ignites a connection that propels Iris to the war's front lines. As they navigate a mystical conflict, can their bond endure the fight for humanity's fate and their own hearts? Discover a tale of love and destiny in a world where letters hold the power to change everything.

In reading order

Letters of Enchantment Series

2 books · Published 2023

#1 in Series

Sale price

$1797

Divine Rivals

Chapter Book · Ages 14–17 · 2023

Rival journalists' letters spark a magical bond amid a divine war threatening their world.

#2 in Series

Sale price

$1900

Ruthless Vows

Chapter Book · Ages 14–17 · 2023

A lost memory, a mysterious letter, and a war's turning point. Will love or loyalty prevail?

Good to know

Common Questions

How many books are in the Letters of Enchantment series?

There are 2 books in the Letters of Enchantment series. It began with Divine Rivals in 2023, and the newest book, Ruthless Vows, was published in 2023.