Order of Book Series
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Cassie Ryan Books in Order

Cassie Ryan has written 8 books, published between 2007 and 2021. The first book is Ceremony Of Seduction (2007) and the newest is Sleeping with Shadows (2021). Publication order is the reading order below.

Books
8
Published
2007–2021
Pages on record
901 in 3 of 8 books
See all 8 books in order Printable Cassie Ryan checklist

Cassie Ryan writes paranormal romance, erotica and fantasy, with demonology and occult subjects recorded against the catalogue. Eight Ryan books span 2007 to 2021, and one series is attached to them, Sisters of Darkness. Ceremony Of Seduction (2007) is the earliest title, followed by Vision of Seduction (2008), Trio of Seduction (2009), Seducing the Succubus (2010) and The Demon and the Succubus (2011). My Obsession (2015), My Addiction (2016) and Sleeping with Shadows (2021) close the catalogued run. Ryan is credited alone on every title.

How many Cassie Ryan books are there?

Cassie Ryan has 8 books, released between 2007 and 2021. 2 of them belong to the Sisters of Darkness series.

Cassie Ryan Books in Publication Order

The table lists all 8 Cassie Ryan books in the order they were published, with the release year, the page count where one is on record, and how many independent book listings confirm each title. Catalogue data as of September 2026.

  1. Cover of Vision of Seduction by Cassie Ryan, book 2 of the Seduction series (2008)
  2. Cover of Seducing the Succubus by Cassie Ryan, book 1 of the Sisters of Darkness series (2010)
  3. Cover of The Demon and the Succubus by Cassie Ryan, book 2 of the Sisters of Darkness series (2011)
  1. 1
    Ceremony Of SeductionSeduction #12007 · confirmed 1/4
    2007–
    Buy at Amazon USAmazon UK
  2. 2
    Vision of SeductionSeduction #22008 · 292 pages · confirmed 1/4
    2008292
    Buy at Amazon USAmazon UK
  3. 3
    Trio of SeductionSeduction #32009 · 312 pages · confirmed 1/4
    2009312
    Buy at Amazon USAmazon UK
  4. 4
    Seducing the SuccubusSisters of Darkness #12010 · confirmed 1/4
    2010–
    Buy at Amazon USAmazon UK
  5. 5
    The Demon and the SuccubusSisters of Darkness #22011 · 297 pages · confirmed 1/4
    2011297
    Buy at Amazon USAmazon UK
  6. 6
    My ObsessionClub Desire #12015 · confirmed 1/4
    2015–
    Buy at Amazon USAmazon UK
  7. 7
    My AddictionClub Desire #22016 · confirmed 1/4
    2016–
    Buy at Amazon USAmazon UK
  8. 8
    Sleeping with Shadows2021 · confirmed 1/4
    2021–
    Buy at Amazon USAmazon UK

Cassie Ryan books grouped by series

Each title below is a row in the publication-order table above. None of these groups has a reading-order page of its own on this site.

Seduction in order

3 books
  1. 1. Ceremony Of Seduction
  2. 2. Vision of Seduction
  3. 3. Trio of Seduction

Sisters of Darkness in order

2 books
  1. 1. Seducing the Succubus
  2. 2. The Demon and the Succubus

Club Desire in order

2 books
  1. 1. My Obsession
  2. 2. My Addiction

Standalone books

1 book

1 Cassie Ryan title here is not listed as part of any series.

Do you have to read Cassie Ryan books in order?

You only need to read Cassie Ryan books in order within the Sisters of Darkness series, which holds 2 of the 8 Cassie Ryan books listed here. The numbered table above gives every book in publication order.

Where to start with Cassie Ryan

Start with Ceremony Of Seduction (2007), the earliest published title.

What is the newest Cassie Ryan book?

Sleeping with Shadows (2021) is the newest Cassie Ryan book released so far.

Is there a new Cassie Ryan book coming?

No next Cassie Ryan book is announced in the catalogue, which is a gap in the listings it merges rather than a sign that the run has ended.

Cassie Ryan at a glance

Paused
No new Cassie Ryan title has appeared for 5 years. The last was published in 2021.
Release pace
Cassie Ryan books have appeared about one every 2 years on average.
Length
901 pages across the 3 of 8 books with a recorded length, a median of 297 pages each.
Busiest decade
Most Cassie Ryan books, 4 of 8, were published in the 2010s.

What the Cassie Ryan books are about

4 of the 8 Cassie Ryan books carry subject tags in Open Library's catalogue. The subjects below are the ones that recur across them, most frequent first: erotica is tagged on 3 of 4. The subjects are cataloguers’ headings, not a plot summary.