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Letters of Enchantment: Divine Rivals Ruthless Vows
Ruthless Vows by Rebecca Ross book cover 🌶️ 1/5 Sweet Tap the cover. Start tonight. →
Book profile · reviewed 26 September 2026

Ruthless Vows

by Rebecca Ross · 2023 · 400 pages · Romance · Letters of Enchantment #2 of 2

Letters duet closer: 400 pages, still Sweet (1/5), reunion tropes beside rivals-to-lovers, mild tag, satisfying close. Pen-pal door is the 368-pager already on chassis. Heat does not step up here.

Duet night two: 400 pages of reunion after the war-correspondent letters, still fade-to-black, satisfying close.

Mood · Engrossing Satisfying
Letters #2 1/5 Sweet 400 pages Reunion

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I need this in my hands tonight → Don’t read it. Hear the first sentence →
15 seconds · then you will not stop
Duet night two: 400 pages of reunion after the war-correspondent letters, still fade-to-black, satisfying close.
Rebecca Ross · Ruthless Vows
0:00–0:15muted preview
400-page letters duet closer · reunion tropes, still Sweet, mild tag Kindle before this tab cools Audible trial often $0
Duet night two: 400 pages of reunion after the war-correspondent letters, still fade-to-black, satisfying close.
Feels like: Duet night two: 400 pages of reunion after the war-correspondent letters, still fade-to-black, satisfying close.
TL;DR: Spice 1/5 Sweet. Reunion and rivals-to-lovers. Engrossing, moderate, satisfying. Mild CW. Not a 3/5 open-door jump.
Mood
Engrossing
Spice
🌶️ 1/5 Sweet
Pacing
Moderate
Length
400 pages
Ending
Satisfying
Lane
Romance
Series
Letters of Enchantment

Ruthless Vows bibliographic record

Title
Ruthless Vows
Series / position
Letters of Enchantment #2 of 2
Author
Rebecca Ross
Publisher
Wednesday Books
First published
2023
Pages
400 (this edition)
Language
English
Genre
Romance
Spice (SBC)
1/5 Sweet · fade-to-black

How Ruthless Vows actually reads

The ache of almost, drawn out across chapters — reunion and rivals-to-lovers tropes on the live profile.

HowTo: Divine Rivals first, then this 400-pager. Live leaf lists Letters of Enchantment. Satisfying ending, not a dark Shatter Me close.

Spice 1/5 Sweet: the tension is emotional, not physical. Mild content — generally safe.

Who should read Ruthless Vows tonight

Swipe right if…

  • Divine Rivals is finished
  • Reunion + rivals-to-lovers is the hook
  • 1/5 Sweet is still tonight’s ceiling
  • 400 pages of letters-and-war aftermath fits
Yes — see Kindle or Audible below

Swipe left if…

  • You have not read Divine Rivals
  • You came looking for a spice jump
  • You do not want series context
  • You wanted 4/5 romantasy heat
Divine Rivals first →

Where the heat actually lands

Still Sweet. 400-page reunion. Mild tag. Not a 3/5 open-door.

0–25%

After the first letters

Book 2. Reunion tag. Heat stays closed-door.

25–55%

Rivals still in the room

Rivals-to-lovers alongside reunion. Emotional tension.

55–85%

400-page almost

Ache drawn across chapters. Mild CW.

85–100%

Satisfying

Satisfying ending on this profile — duet close on the HowTo.

Letters of Enchantment series order

Start at Divine Rivals. This leaf is the 400-page 1/5 second book on the Letters of Enchantment HowTo. This page does not invent a third-book spice rating.

Divine RivalsBook 1 · shipped chassis door
Ruthless Vows · this book400 pages · still 1/5 Sweet

Full table: Letters of Enchantment reading order. →

How do you want this in your head in the next ten minutes?

If you already know

See the set

Do not bundle out of panic. Read twenty pages first.

See editions →

Content heads-up

Mild content — generally safe on this 400-page Letters of Enchantment #2 leaf. No extra heads-up tags.

Tropes: Reunion · Rivals To Lovers

Books like Ruthless Vows — pick the rail

Required door

Divine Rivals

Letters #1. War-correspondent letters. Not this 400-page reunion.

See /books/divine-rivals/

Same Sweet band, cell door

Shatter Me

1/5 founder lock. Lethal touch. Not a letters duet.

See /books/shatter-me/

Same craving

Books like Ruthless Vows

Ruthless Vows · 1/5 Sweet · Reunion + Rivals To Lovers · Letters of Enchantment #2 of 2 · 400 pages · Engrossing · Romance · CW: Mild content — generally safe on this 400-page Letters of Enchantment #2 leaf. No extra heads-up tags.

Ruthless Vows questions

How spicy is Ruthless Vows?

1/5 Sweet. Emotional tension, not a heat upgrade from Divine Rivals. 400 pages.

Can I start here?

No. Divine Rivals is Letters of Enchantment #1. This is book 2 of 2 on the HowTo.

Does it have a happy ending?

Satisfying ending on this profile. 400-page; Letters of Enchantment #2 of 2; Letters #2; 1/5 Sweet; Duet night two: 400 pages of reunion after the war-correspondent letters, still fade-to-black, satisfying close..

Is there an audiobook?

Yes. Search Audible for Ruthless Vows by Rebecca Ross. 400-page; Letters of Enchantment #2 of 2; Letters #2; 1/5 Sweet; Duet night two: 400 pages of reunion after the war-correspondent letters, still fade-to-black, satisfying close..

What tropes are published?

Reunion and rivals-to-lovers. Mild CW. 400-page 1/5.

Last chance to stop scrolling

The 368-page pen-pal door is Divine Rivals — finish that first.

When you are ready, start with Kindle, paperback, or Audible.

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After this one

One Friday book. Mood and spice already checked.

Send Friday’s match →
Ruthless Vows · 1/5 Sweet
400-page duet closer. Still Sweet. Reunion + rivals. Mild tag.
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