Monster Security Agency Books in Order

This page lists the complete Monster Security Agency reading order by Cassie Alexander, with book numbers, publication years, and a publication-order view for readers who want to start at the beginning.

Updated 2026-06-22 / 15 books / 2024-2026

Monster Security Agency Reading Order

01 Guarded by the Golem(By: Cara Wylde) 2024 Buy

02 Guarded by the Snake(By: Layla Fae) 2024 Buy

03 Guarded by the Spider 2024 Buy

04 Guarded by the Kraken 2024 Buy

05 Guarded by the Leshy(By: Cara Wylde) 2024 Buy

06 Guarded by the Vodnik(By: Layla Fae) 2024 Buy

07 Guarded by the Nightmare 2024 Buy

08 Guarded by the Reaper(By: Cara Wylde) 2024 Buy

09 Guarded by the Phantom(By: Layla Fae) 2024 Buy

10 Guarded by the Krampus 2024 Buy

11 Guarded by the Yeti(By: Cara Wylde) 2024 Buy

12 Guarded by the AI 2025 Buy

13 Guarded by the Symbiote(By: Cara Wylde) 2025 Buy

14 Guarded by the Steel Seraph(By: Cara Wylde) 2026 Buy

15 Guarded by the Clanker(By: Layla Fae) 2026 Buy

Monster Security Agency Books by Publication Order

2024 Guarded by the Golem(By: Cara Wylde) #1

2024 Guarded by the Snake(By: Layla Fae) #2

2024 Guarded by the Spider #3

2024 Guarded by the Kraken #4

2024 Guarded by the Leshy(By: Cara Wylde) #5

2024 Guarded by the Vodnik(By: Layla Fae) #6

2024 Guarded by the Nightmare #7

2024 Guarded by the Reaper(By: Cara Wylde) #8

2024 Guarded by the Phantom(By: Layla Fae) #9

2024 Guarded by the Krampus #10

2024 Guarded by the Yeti(By: Cara Wylde) #11

2025 Guarded by the AI #12

2025 Guarded by the Symbiote(By: Cara Wylde) #13

2026 Guarded by the Steel Seraph(By: Cara Wylde) #14

2026 Guarded by the Clanker(By: Layla Fae) #15

Questions readers ask

What is the correct Monster Security Agency reading order?

The Monster Security Agency reading order on this page follows the numbered series order where available, with publication years shown beside each book.

How many Monster Security Agency books are there?

This catalog currently lists 15 Monster Security Agency books published across 2024-2026.

Who writes the Monster Security Agency books?

Monster Security Agency is listed as a book series by Cassie Alexander.

Should I read Monster Security Agency in publication order?

For most readers, publication order is the safest way to read Monster Security Agency. If a separate series order is available, this page shows that order first and publication years beside each title.

More by Cassie Alexander

Cassie Alexander books in order and complete bibliography ->

Source note: Sequencebooks organizes author, book, and series records from its catalog data. Publication years and series order are shown when available.