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MC (Motorcycle Club) Romance

Ridge’s Viper: A Marriage of Convenience MC Romance (Mountain River MC)

Cala Riley

Book 3 in the Mountain River MC series · Reading order →

SpiceDarkness

How we rate spice & darkness

  • Kindle, paperback & audiobook on Amazon
  • Spice & darkness rated — content warnings listed below

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Why we recommend it

A marriage-of-convenience MC romance where a viper's cold arrangement becomes far more real than expected. Rough-edged, slow-burn, and unapologetically tender underneath.

At a glance

Ridge’s Viper is book 3 in Cala Riley’s Mountain River MC series; to read in order, start with Panther’s Magpie. It rates 3/5 for spice and 2/5 for darkness, on the lighter side for motorcycle club romance: almost none of the 312 motorcycle club romance books we rate are lighter on either scale. Tropes: marriage of convenience, dark protector and slow burn. Marriage of convenience is one of the less common tropes in our catalogue. It is lighter than Cala Riley’s other books on Readark (average darkness 2.5/5). It runs to 308 pages. We have not tagged its content warnings yet, so check the author’s notes before you start.

Book details

Pages
308
Published
June 2026

Ridge’s Viper spice level

Ridge’s Viper is rated 3/5 for spice on Readark’s scale: open door, meaning explicit scenes written plainly, but not the engine of the book. Its darkness rating is 2/5: morally grey, meaning the love interest does real harm and consequences are acknowledged. How we rate

Ridge’s Viper content warnings

We haven’t tagged content warnings for this book yet. If you have specific triggers, check reader reviews before you start.

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