Neighbors of Sapphire Valley · 2025
HeavySpice level, tropes & is it dark romance?
by M.L. Burns
Spice 4/5 (Explicit) · Darkness 5/5 (No light) · 8 trigger warnings flagged
From M.L. Burns, 2025: Heavy, book 1 of Neighbors of Sapphire Valley. The pull here is mafia, captive, killer hero, morally grey, enemies to lovers and forbidden. We score it spice 4 (explicit) and darkness 5 (pitch black). The heaviest flags readers report are sexual assault, abuse, violence. Our scores lean on what readers report, not on a full reread, so treat them as a guide. This note is ours. It is not a publisher blurb.
First published: 2025. Book 1 of Neighbors of Sapphire Valley.
Heavy tropes
On this shelf, Heavy is filed under Mafia dark romance, Captive romance, Serial killer romance, Morally grey heroes, Enemies to lovers and Forbidden romance. Each tag opens more books with that trope.
Heavy spice level
Is Heavy dark romance?
Yes, at the very dark end. Heavy scores 5 of 5 on our darkness scale (No light).
Spice and darkness are separate scores. More no light books. How we rate.
Heavy trigger warnings
Book-specific flags taken from reader-submitted content warnings on The StoryGraph (top flag reported by 21 readers), grouped by us. Also on that list: pedophilia, sexual content, suicide attempt, panic attacks/disorders, suicidal thoughts, fire/fire injury, drug abuse, death of parent, drug use, alcohol. See the reader-submitted list.
Graphic (8) — open before you read
Open this before you read. These are the flags most likely to be a hard stop.
Moderate (0)
Harm, control, or obsession that is common in this lane.
None flagged in this band.
Minor (0)
Present, and usually not the reason someone puts the book down.
None flagged in this band.
Neighbors of Sapphire Valley reading order
Heavy is book 1 of 1 in M.L. Burns's Neighbors of Sapphire Valley series. Start here.
- Book 1 Heavy (this book) · 2025
Order checked against the StoryGraph Neighbors of Sapphire Valley series page on 13 October 2026.
Who it's for
Shelf note written for this site. We do not copy reviews or publisher blurbs. Outbound links are search pages, not quoted ratings. Kindle Unlimited and endings are only flagged when we were willing to mark them. How we rate.
Missing a book? Suggest it.
Books like Heavy
Matched on shared tropes, then the closest spice and darkness scores. Other books in the same series are listed above, not here.
- Control Me
Control Me
Michelle Heard
Spice ●●●●○Dark ●●●●●
Shared: Mafia dark romance, Forbidden romance
- Dante
Dante
Sadie Kincaid
Spice ●●●●○Dark ●●●●●
Shared: Mafia dark romance, Captive romance
- Malevolent King
Malevolent King
Mila Kane
Spice ●●●●○Dark ●●●●●
Shared: Mafia dark romance, Captive romance
- Nyx
Nyx
Serena Akeroyd
Spice ●●●●○Dark ●●●●●
Shared: Forbidden romance, Serial killer romance
- The Ever King
The Ever King
LJ Andrews
Spice ●●●●○Dark ●●●●●
Shared: Captive romance, Enemies to lovers
- Burn With Me
Burn With Me
Lucy Smoke
Spice ●●●●○Dark ●●●●○
Shared: Mafia dark romance, Forbidden romance
- Destroy Me
Destroy Me
Michelle Heard
Spice ●●●●○Dark ●●●●○
Shared: Mafia dark romance, Enemies to lovers
- Now You're Mine
Now You're Mine
Morgan Bridges
Spice ●●●●○Dark ●●●●○
Shared: Mafia dark romance, Captive romance
Books like Heavy, with a reason for each
Questions readers actually ask
What is the spice level of Heavy?
Heavy spice level is 4 of 5 (Explicit). On-page sex, clearly written. Darkness is a separate score: 5 of 5 (No light).
What are the Heavy trigger warnings?
Graphic: Sexual assault, Abuse, Violence, Murder, Kidnapping, Blood, Psychological abuse, Grief. Moderate: none flagged. Minor: none flagged. These are book-specific flags reported by readers on reader-submitted content warnings on The StoryGraph (top flag reported by 21 readers), grouped by us. The author's own note may list more. Read it before you start.
Is Heavy dark romance?
Yes, at the very dark end. Heavy scores 5 of 5 on our darkness scale (No light). The book is not interested in pulling the punch.
What tropes are in Heavy?
On this shelf Heavy is filed under Mafia dark romance, Captive romance, Serial killer romance, Morally grey heroes, Enemies to lovers and Forbidden romance.
Who is Heavy for?
For readers hunting mafia and captive with explicit spice. Read the warnings first.
What are some books like Heavy?
Matched on shared tropes and similar spice and darkness: Control Me by Michelle Heard; Dante by Sadie Kincaid; Malevolent King by Mila Kane; Nyx by Serena Akeroyd; The Ever King by LJ Andrews; Burn With Me by Lucy Smoke. More read-alikes, each with a reason, are on zademasked.com/like/heavy.
Is Heavy a standalone?
No. Heavy is book 1 of 1 in the Neighbors of Sapphire Valley series by M.L. Burns.
What order should I read the Neighbors of Sapphire Valley series in?
1. Heavy.
How many books are in the Neighbors of Sapphire Valley series?
The Neighbors of Sapphire Valley series by M.L. Burns has 1 main book.
What is the Heavy age rating?
We'd say 18+. Spice sits at 4/5 (explicit) and darkness at 5/5 (no light). That's our recommendation, not an official rating, so read the trigger warnings as well.
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