Crimson — Of Shadows & Secrets, Book One

A Harvard kid who can’t leave a stranger alone. A naval officer who carries himself like a secret.

They fell in love.
Then their orders came.

Of Shadows & Secrets, Book One · WWII MM Romance · Real Spycraft

For fans of Tal Bauer, James Bond, and Jason Bourne

Crimson by Casey Morales

“I have already ordered the next two books in the series.”

— Steven Muni, Amazon reader
Slow burnReal WWII spycraftFound familyNo cliffhanger
★★★★★4.6 950+ Amazon ratings

3 gold, 1 silver, and 1 bronze across books 1–3

Book one of seven. Will and Thomas’s love story is complete right here.

Signed paperback

$19.99 $12.99 Save 35%

Plus $4.99 shipping · ships in 3–5 days

or
CrimsonFalkirkHallum

Get all three: Crimson, Falkirk, and Hallum, signed, with free shipping

Also on Kindle (free in KU) and Audible

Will Shaw is a Harvard student who can’t leave a stranger alone.

Thomas Jacobs is a naval officer who carries himself like a secret.

Their country is weeks away from a war nobody will admit is coming.

And the OSS wants to teach them both how to lie.

The only thing neither of them can hide is each other.

Their love story is complete in Crimson.
Their war is just getting started.

Crimson ends with Will and Thomas together and their first mission orders in hand. Falkirk and Hallum follow that mission all the way through, which is why so many readers end up getting all three.

Crimson
CrimsonBook one. They meet, fall in love, and join the OSS.
Falkirk
FalkirkBook two. Their first mission begins.
Hallum
HallumBook three. The first mission comes to its end.

What readers say

★★★★★

“I have already ordered the next two books in the series.”

Steven Muni
★★★★★

“I found myself rereading passages because I was captured by the emotions.”

JanG
★★★★★

“A serious atmosphere sprinkled with humor and love.”

D J
★★★★★

“The writing made me hold my breath a beat longer than usual.”

Jim Faasse
★★★★★

“A beautiful story, with extremely touching characters.”

Kurohagi, France
★★★★★

“Both historical and hysterical, but full of tension and discovery.”

Kindle reader, United Kingdom

It’s a love story first, and the spy story is real too.

Will Shaw expected lectures, long nights in the library, and a degree. He got Thomas Jacobs instead, a naval officer newly arrived on campus who was careful, controlled, and always watching.

Within the year, they were both being taught how to disappear. The OSS could train them to hide almost anything, but it couldn’t teach them to hide what they felt for each other.

Crimson is a historical spy thriller with a romance at its center, not a romance wearing a spy costume.

Hi, Casey Morales here…

Author of 48 novels, including multiple bestsellers.

I write for readers who want the romance and the mission, and who don’t want either one to be a costume. Books one through three of this series have earned three golds, a silver, and a bronze in international literary competitions, and Crimson holds a 4.6 across more than 950 Amazon ratings.

If you like slow burns, real history, found family, and two men who’d rather die than betray each other, you’re in the right place.

Casey

Casey signing a paperback
I sign every one of these myself.

Before you decide

Do Will and Thomas end up together?

Yes. Crimson is their love story, and it’s resolved by the last page. They stay together through the rest of the series, which follows them through the war and the years after it.

Does Crimson end on a cliffhanger?

No. The love story is settled by the end of the book. Crimson closes with the two of them receiving their first mission orders, and what that mission is opens Falkirk. That’s why most readers want all three books together.

What happens after book three?

From book four on, each novel is a standalone mission for Will and Thomas. You can keep reading in order or pick the missions that interest you most.

Who narrates the audiobook?

Joel Leslie narrates Crimson. He has won twelve AudioFile Earphones Awards and a SOVAS Award.

How much is shipping?

The three-book set ships free, as does any order over $25. A single copy of Crimson ships for a flat $4.99 anywhere in the US, and most orders arrive within three to five days.

Do you ship internationally?

I don’t at the moment, I’m afraid. Signed paperbacks ship within the US only. Outside the US, the ebooks and audiobooks are available everywhere.

Start with book one.

Signed paperback

$19.99 $12.99 Save 35%

Plus $4.99 shipping · ships in 3–5 days

or
CrimsonFalkirkHallum

Get all three: Crimson, Falkirk, and Hallum, signed, with free shipping

Also on Kindle (free in KU) and Audible

After the first mission, four more novels and a prequel novella continue their story, and book eight is in progress.

Beehive
Shadowfox
Skotos
Icelock
Goodnight, Not Goodbye
Book one is the falling in love.
What comes after is a marriage that stays classified.

© 2026 Casey Morales. All rights reserved. Signed paperbacks are only available directly from the author. As an Amazon Affiliate, Casey earns a royalty on qualifying purchases.

Crimson, signed · $12.99 + $4.99 shipping