Three overlapping book covers from M. Sinclair's I.S.S. series
My avg. rating
5/5
·
LOVED IT!
Avg. spice level
4/5
·
Explicit scenes
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Book Review: I.S.S.

by M. Sinclair · 5 books · Main Story Complete, Ongoing Extras
Explicit scenes
Reverse Harem (without MM) romance
18+
Intended for mature audiences

Series details

Total books
5 (as of June 3, 2026)
Series status
Main Story Complete, Ongoing Extras
Author
All books in the series are written by the same author

What this series is about

Reverse harem monster romance: Abandoned at ISS—an institute for nightmares—Arabella grows up loving her nightmares instead of fearing them. Now, at twenty-four, she’s at a crossroads: confront her feelings for them or walk away, all amid rescue missions and attacks on the Institute.

Rating & review

My rating
5/5
·
LOVED IT!
Books I've read
3 of 5
Have I finished it?
No

The romance

Steam level

4

/5
Explicit scenes
Relationship type

Reverse Harem (without MM)

Couple consistency

Harem grows over time

Reading order

Do I need to read the books in order?
Yes – Must be read in order

Books I've reviewed from this series

    Reviewed
    Book cover of Soothing Nightmares by M. Sinclair
    Reverse harem monster romance: Abandoned at ISS—an institute for nightmares—Arabella grows up loving her nightmares instead of fearing them. Now, at twenty-four, she’s at a crossroads: confront her feelings for them or walk away, all amid rescue missions and attacks on the Institute.
    Reviewed
    Book cover of Defending Nightmares by M. Sinclair
    Reverse harem monster romance: Arabella leaves the safety of ISS for a mission beyond its walls—with her possessive nightmares in tow.
    Read
    Book cover of Loving Nightmares by M. Sinclair
    Loving Nightmares
    I would go to war to protect the nightmares I loved.War was at our doorstep threatening to kill my father, and with him were enough humans that if battle ensued, it would make national headlines. Ones that would only further divide and enhance the hatred between humans and nightmares.War had to be defeated, I just…
    Read
    Book cover of Defeating Nightmares by M. Sinclair
    Defeating Nightmares
    5
    /5
    I would remind the humans why they feared the dark…and why I loved it. Our home is under threat, and I was across the country being threatened by a god terror in the Oceanic Forest. To say our situation is far from ideal is an understatement… So when Hate threatens my mates, something is unleashed…

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