Skip to content
Find my book
Radiant Sin by Katee Robert, book cover

Book 4 in Dark Olympus

Radiant Sin

by Katee Robert

Spice 5 out of 5, Scorching5/5 · Scorching: Explicit & plentiful

As a disgraced member of a fallen house, Cassandra Gataki has seen firsthand what comes from trusting the venomous Thirteen. But when the maddeningly gorgeous and kind Apollo asks her to go undercover as his plus-one at a week-long party hosted by a dangerous new power player… Cassandra reluctantly agrees to have his back.

On one condition: when it's all over, and Apollo has the ammunition he needs to protect Olympus, she and her sister will be allowed to leave. For good.

Apollo may be the city's official spymaster, but it's his ability to inspire others that keeps him at the top. Despite what the rest of Olympus says, there's no one he trusts more than Cassandra. Yet even as their fake relationship takes a wicked turn for the scaldingly hot, a very real danger surfaces… threatening not only Cassandra and Apollo, but the very heart of Olympus itself.

Spice
5/5
Burn
Fast
Pages
~320
Ending
HEA

KU Is it on Kindle Unlimited? Check on Amazon

How spicy is Radiant Sin?

Radiant Sin is a 5 out of 5 on our spice scale: scorching (explicit & plentiful). Frequent, very explicit and often kinky. Spice is a main event. Read with a fan nearby. Spice starts early (first quarter).

  • Steam: Explicit and plentiful
  • Burn: Fast burn
  • When: Spice starts early (first quarter)
  • Pairing: One man, one woman
  • POV: Dual POV (both leads)
  • Ending: Happily ever after

Content warnings

Some readers like to go in blind, so these stay hidden until you tap.

Show 2 content warnings
  • Death of a loved one
  • Murder

Our editorial notes, which may be incomplete. If something is a hard limit for you, check the author's own content notes too.

What readers say

Loading reader votes…

Read it? How spicy was it?

Tap a level to vote. Tap it again to take your vote back.

    Spot a content warning we missed?

    Tick anything the book has. Once a few readers report the same thing, it is added to this book's content warnings (still behind a tap) and to the hard-no filters.

    Reader reviews

    1. Loading reviews…

    Reviews and votes are from readers, not us. Community rules.

    Sign in to join in

    Vote on spice, report warnings and write reviews.

    We email you a one-tap sign-in link. New here? The same link creates your account. No newsletter.

    Tropes & tags

    Your next read

    If you liked Radiant Sin

    More by Katee Robert

    See all →

    Radiant Sin: quick answers

    How spicy is Radiant Sin?

    Radiant Sin is a 5 out of 5 on our spice scale: scorching (explicit & plentiful). Frequent, very explicit and often kinky. Spice is a main event. Read with a fan nearby. Spice starts early (first quarter).

    Is Radiant Sin a standalone?

    No. Radiant Sin is book 4 in Dark Olympus. Start with Neon Gods. The series is still ongoing.

    What tropes are in Radiant Sin?

    Radiant Sin features gods & mythology, retelling, cinnamon roll hero, forced proximity. It is a fast burn M/F romance that ends with a happily ever after.

    Does Radiant Sin have content warnings?

    Our notes for Radiant Sin include: death of a loved one, murder. This list may not be complete; check the author's own content notes if anything is a hard limit for you.

    What should I read after Radiant Sin?

    If you loved Radiant Sin, try A Game of Fate by Scarlett St. Clair, A Touch of Darkness by Scarlett St. Clair, Desperate Measures by Katee Robert. They share its gods & mythology and retelling energy at a similar spice level.