Cassie Lein

Cassie Lein

Upcoming Cassie Lein Books

August 28th, 2026: Smoke Signals (Firehouse 99, #7)

September 10th, 2026: Jackson (Toxic Hearts Club, #4)

Mister Morgan (CEOs of Kink, #2) was the most recently released book by Cassie Lein, on March 3rd, 2026.

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Click to get new book alerts by Cassie Lein sent straight to your email.

Cassie Lein Stats: The most read book by Cassie Lein on Book Notification is Trapped by Beauty, the first novel in the Fairy Tales With A Monstrous Twist series. The second most read book is Fangs & Freaks (Shifters of Myths and Legends #1).

Below is a complete list of Cassie Lein books in publication and chronological order, broken down by series. The most popular series by Cassie Lein is the Shifters of Myths and Legends Series.

List of Beyond the Pack Books in Publication Order (with Bre Rose)

List of Coral Springs University Books in Publication Order (with Alisha Williams)

ReadTitle Avg.YearBook Link
1
2024

List of Foxy's Rent-A-Date Books in Publication Order

A rent-a-date service leads to messy, real feelings and complicated love for its clients and employees.

ReadTitle Avg.YearBook Link
1
2025
2
Oliver (By: Kyra Fox)
2025
3
Zacariah (By: Ainsley Jaymes)
2025
4
2025
5
Kristofer (By: Amelia Hayden)
2025
6
Everette (By: Victoria Gillilan)
2025
7
Flynn (By: Luna Maree)
2025
8
2025
9
2025
10
Anthony (By: Nina Brown)
2025
11
2025
12
Amador (By: Lena Lane)
2025
13
Martin (By: Gillian Grey)
2025
14
Ryder (By: Mo Flames)
2025
15
Quinn (By: S.A. Sommers)
2025
16
Rent Me Jameson (By: Leona Noctis)
2025
17
2025
18
Lucas (By: CJ Servo)
2025
19
Reid (By: Amanda Zook)
2025
20
2025
21
2025
22
2025
Show All Books in this Series

List of Hell's Mayhem MC Illinois Books in Publication Order

ReadTitle Avg.YearBook Link
1
2024

List of Holiday Hearts Books in Publication Order

List of Murder and Mayhem Omegaverse Books in Publication Order (with Bre Rose)

ReadTitle Avg.YearBook Link
1
2024
2
2025
3
2025
Show All Books in this Series

List of Outlaws Books in Publication Order (with Bre Rose)

ReadTitle Avg.YearBook Link
1
2023
2
2024

List of Renegade MC Books in Publication Order

ReadTitle Avg.YearBook Link
1
2024

List of Shifters of Myths and Legends Books in Publication Order (with Bre Rose)

ReadTitle Avg.YearBook Link
1
102025

List of Sinner's Delight Books in Publication Order

ReadTitle Avg.YearBook Link
1
2024

List of Wild Thorn Ranch Books in Publication Order (with Alisha Williams)

ReadTitle Avg.YearBook Link
1
2023
2
2024

List of Standalone Novels in Publication Order

List of A Night To Remember Auction Books in Publication Order

Erotic romances where characters explore desire and connection through high-stakes auction encounters.

List of Behind The Lens Books in Publication Order

Women's lives are upended, finding dangerous new paths and complicated relationships with the help of an organization.

ReadTitle Avg.YearBook Link
1
Bittersweet Sim-Phony (By: Jay Leigh Brown)
2025
2
Between the Stacks (By: TL Reeve, Kismet New Moon)
2025
3
102025
4
2025
5
Rhythm and Rapture (By: Ruby Smoke)
2025
6
2025
7
2025
8
2025
9
2025
10
Sanguineous Fiend (By: Cheyenne Browning)
2025
11
Wrapped in Sugar (By: T.A. Boo)
2025
Show All Books in this Series

List of Brighton High School Reunion Books in Publication Order

Reunions featuring former classmates confronting past relationships and personal histories.

List of Fairy Tales With A Monstrous Twist Books in Publication Order

Monstrous beings become the unexpected love interests in twisted fairy tale retellings.

List of Wicked Temptations: Key Party Books in Publication Order

At a clandestine key party, men and women surrender to their deepest desires, leading to passionate encounters, forbidden bonds, and life-changing consequences.

List of CEOs of Kink Books in Publication Order

ReadTitle Avg.YearBook Link
1
2026
2
2026
3
2026
4
2026
5
2026
6
2026
7
Mister Black (By: Leona Noctis)
2026
8
Mister North (By: Victoria Gillilan)
2026
9
Mister St. James (By: Nina Brown)
2026
Show All Books in this Series

List of Firehouse 99 Books in Publication Order

List of Toxic Hearts Club Books in Publication Order

ReadTitle Avg.YearBook Link
1
2026
2
2026
3
2026
4
2026
Show All Books in this Series

List of Knotty Puckers Books in Publication Order

Omegas find unexpected heats and destined bonds with hockey players.

List of Hotel Diablo Books in Publication Order

ReadTitle Avg.YearBook Link
1
2025
2
2025
3
2025
Show All Books in this Series

List of Cassie Lein Anthologies in Publication Order

Click to get new book alerts by Cassie Lein sent straight to your email.

Cassie Lein

Cassie Lein was born in United States.

Cassie Lein has written 4 standalone novels, starting with Wild Child in 2024. The most recently released novel was Toxic B!tch, which was released in 2025. There are no upcoming standalone novels by Cassie at this time.

Cassie Lein has also written the Holiday Hearts series which has 3 books including Christmas Cupid and Vacation Valentines.

Related Authors

Fans of Cassie Lein also enjoy these authors:

  1. Sam Hall, author of the Ursa Shifters Series.
  2. K.A. Knight, author of: Den of Vipers.
  3. Tate James, author of the Madison Kate Series.
  4. C.M. Stunich, author of The Havoc Boys Series.
  5. Jaymin Eve, author of the Shadow Beast Shifters Series.

Cassie Lein: F.A.Q

Where was Cassie Lein Born?

Cassie Lein was born in United States and is American.

What was the first book Cassie Lein wrote?

The first book written by Cassie Lein was Christmas Cupid, published in 2022.

What was the most recent book Cassie Lein wrote?

Her most recently released work was Mister Morgan on March 3rd, 2026.

What is the most popular book by Cassie Lein?

Based on the number of readers on Book Notification, the most popular Cassie Lein book is Trapped by Beauty. Here are her most popular books:
  1. Trapped by Beauty (8)
  2. Fangs & Freaks (10)

Are there upcoming new books by Cassie Lein?

Cassie Lein has two new books coming out: Smoke Signals will be released on August 28th, 2026. Jackson will be released on September 10th, 2026

Click and we will keep you updated on these via e-mail, and about any new books Cassie Lein announces in the future.

How many books has Cassie Lein written?

Cassie Lein has written 32 books across 26 series, excluding contributions to anthologies.
  • 3 books in the Beyond the Pack Series
  • 1 book in the Coral Springs University Series
  • 1 book in the Foxy's Rent-A-Date Series
  • 1 book in the Hell's Mayhem MC Illinois Series
  • 3 books in the Holiday Hearts Series
  • 2 books in the Murder and Mayhem Omegaverse Series
  • 2 books in the Outlaws Series
  • 1 book in the Renegade MC Series
  • 1 book in the Shifters of Myths and Legends Series
  • 1 book in the Sinner's Delight Series
  • 2 books in the Wild Thorn Ranch Series
  • 4 Standalone Novels
  • 1 book in the A Night To Remember Auction Series
  • 1 book in the Behind The Lens Series
  • 1 book in the Brighton High School Reunion Series
  • 1 book in the Fairy Tales With A Monstrous Twist Series
  • 1 book in the Wicked Temptations: Key Party Series
  • 1 book in the CEOs of Kink Series
  • 1 book in the Firehouse 99 Series
  • 1 book in the Toxic Hearts Club Series
  • 1 book in the Knotty Puckers Series
  • 1 book in the Hotel Diablo Series

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