- First published
- 2022
- Audience
- Adult
- Series position
- Standalone
- Series status
- Standalone
- Commitment
- Single book
- Profile basis
- Individual book
Taste profile
At a glance
- Tone
- Romantic
- Pace
- Measured
- Magic
- Medium
- Prose
- Accessible
- Romance
- Central
A marshal and an undertaker who dislike each other begin an anonymous correspondence in a strange frontier.
Hart and Mercy know each other through hostile professional encounters. Anonymous letters allow them to speak with an honesty neither can manage face to face.
The book sits between cozy fantasy and darker romantic fantasy: work, family, and humor offer warmth, while death and isolation remain central rather than decorative.
Best if you want
- A central adult romance with grief, humor, and unusual work.
- Enemies-to-lovers tension inside a compact secondary world.
Think twice if you need
- A romance-free fantasy or large-scale politics.
- Pure coziness without death, loneliness, or on-page danger.
Fantasy Fit Matrix
The Undertaking of Hart and Mercy
Individual book / romantic tone / measured pace
Taste intensity
Political intrigue
1/ 5
Darkness
3/ 5
Character focus
5/ 5
Plot complexity
3/ 5
Worldbuilding depth
3/ 5
Taste categories
- Prose difficulty
- AccessibleAccessible / Moderate / Literary
- Romance role
- CentralNone / Subplot / Major thread / Central
- Magic presence
- MediumLow / Medium / High
- Magic-system type
- SoftNone / Soft / Hard / Hybrid
Reading commitment
- Series status
- Standalone
- Series commitment
- Single book
Outside the score
Reader context
Audience and content guidance help prevent unsuitable matches. They do not change what a Matrix value means.
- Intended audience
- Adult
- Profile basis
- Individual book
- The Matrix values describe this volume, not an average for the whole series.
Reader advisories
- Violence
- Sexual content
- Strong language
- Grief and loss
This is practical guidance, not an exhaustive content-warning list.
Data quality
Editorial record
Matrix v1.0 / calibrated / high confidence / reviewed 2026-07-23
If you liked The Undertaking of Hart and Mercy, start here.
The closest matches in the current library, calculated with Matrix v1.0. Scores reflect taste similarity and audience suitability. Books from this series are excluded, and each recommended series appears only once.
91.7%
Calculated fit
Complete series
Divine Rivals
by Rebecca Ross / Letters of Enchantment
- Best if you want
- A central young romance built through letters and shared work.
- Think twice if you need
- Detailed military tactics or a deeply explained magic system.
- Closest match
- The strongest alignment is in tone and character focus.
- Biggest difference
- The clearest shift is in subgenre and political intrigue.
82.9%
Calculated fit
Complete series
A Marvellous Light
by Freya Marske / The Last Binding
- Best if you want
- A central queer romance inside a historical magical mystery.
- Think twice if you need
- Epic battles or a secondary-world setting.
- Closest match
- The strongest alignment is in tone and character focus.
- Biggest difference
- The clearest shift is in subgenre and magic presence.
82%
Calculated fit
Standalone
Yumi and the Nightmare Painter
by Brandon Sanderson
- Best if you want
- A complete fantasy romance with two equally important leads.
- Think twice if you need
- Minimal romance or an impersonal epic scale.
- Closest match
- The strongest alignment is in tone and character focus.
- Biggest difference
- The clearest shift is in subgenre and magic presence.
80.8%
Calculated fit
Ongoing series
A Court of Thorns and Roses
by Sarah J. Maas / A Court of Thorns and Roses
- Best if you want
- Romance as a core part of the fantasy promise.
- Think twice if you need
- Romance kept to a minor subplot.
- Closest match
- The strongest alignment is in tone and darkness.
- Biggest difference
- The clearest shift is in character focus and magic presence.
75%
Calculated fit
Ongoing series
From Blood and Ash
by Jennifer L. Armentrout / Blood and Ash
- Best if you want
- A romance-forward fantasy with secrets, betrayals, and supernatural conflict.
- Think twice if you need
- A compact or completed series.
- Closest match
- The strongest alignment is in tone and romance role.
- Biggest difference
- The clearest shift is in character focus and political intrigue.