The demon's in the details.

Alastair Stone is intrigued when he’s asked to look into a bizarre series of murders united by intricate and unsettling symbols carved into the victims’ bodies.

As the deaths pile up and the killer seems able both to travel and commit his crimes without a trace, Stone learns the murders aren’t only linked—they’re parts of a malevolent, massively powerful ritual with an ancient demonic artifact at its root.

With the stakes growing ever higher, Stone needs strong allies—including an old enemy with crucial information, an old friend he hasn’t seen for years, and someone very close to him who reveals a surprising new secret.

If he can’t get to the bottom of the ritual and deal with the source before it’s too late to stop it, millions of people could perish.

But even if he does prevent the ritual, the choices he’s forced to make to ensure victory will change his life in ways he never expected.

Don't miss the rest of the series:

Stone and a Hard Place
The Forgotten
The Threshold
The Source
Core of Stone
Blood and Stone
Heart of Stone
Flesh and Stone
The Infernal Heart
The Other Side
Path of Stone
Necessary Sacrifices
Game of Stone
Steel and Stone
Stone and Claw
The Seventh Stone
Gathering Storm
House of Stone
Circle of Stone
The Madness Below
Boys' Night (Way) Out (novella)
An Unexpected Truth (novella)
Death's Door
Blood Brothers
Homecoming
Mortal Imperative
Balance of Power
Rite of Passage
Winds of Change
Awakening
Blood Ties
Vicious Circle
The Lost Scion

And four standalone tales:

Turn to Stone
Shadows and Stone
Devil's Bargain
Stone for the Holidays

Also, don't miss these two series set in the world of the Alastair Stone Chronicles:

Happenstance and Bron

The Soul Engine
Chariots of Wrath
By Demons Driven

Calanar

Hard Way
The Mechanic
House of Cards