book cover of A Cost Most Deadly
 

A Cost Most Deadly

(2026)
(The fifth book in the Maplewood Mystery series)
A novel by

 
 
A Cost Most DeadlyIn Maplewood, the hardest truths aren’t always the loudest ones.

After the events of A Spark Most Deadly, the town has settled back into its routines. The streets are familiar. The bakery lights still glow. From the outside, everything looks the same.

But something has shifted.

When a new murder forces old choices into the open, Owen Harper and Police Chief Grace Miller find themselves confronting a truth Maplewood would rather leave alone: some things don’t stay buried just because the danger has passed.

This isn’t a crime driven by greed or spectacle.

It’s driven by conviction.

By the quiet ways people justify what they believe they’re protecting—and what they’re willing to carry to keep it that way.

As the investigation deepens, Owen and Grace must navigate shifting loyalties, long-held silence, and the weight of decisions that were never meant to surface. Because in a town built on routine and trust, the hardest question isn’t what happened.

It’s whether the truth should change anything at all.

A Cost Most Deadly is the final book in The Maplewood Mysteries, a winter mystery grounded in consequence, restraint, and the kind of warmth that only comes after something has been carried.


Genre: Cozy Mystery

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