The Blackthorn Key books in order

The Blackthorn Key series by Kevin Sands follows an apothecary's apprentice solving mysteries with codes and chemistry in 1660s London, across six books from 2015 to 2023.

Reading order

# Title Published Author Buy on Amazon
1 The Blackthorn Key 2015 Kevin Sands Buy
2 Mark of the Plague 2016 Kevin Sands Buy
3 Znamení moru 2016 Kevin Sands N/A
4 The Assassin’s Curse 2017 Kevin Sands Buy
5 Call of the Wraith 2018 Kevin Sands Buy
6 The Traitor’s Blade 2021 Kevin Sands Buy
7 The Raven’s Revenge 2023 Kevin Sands Buy

The Blackthorn Key series began in 2015 with its title novel and has continued through six books. Christopher Rowe, the protagonist, is an orphan apprenticed to Master Benedict Blackthorn, an apothecary in Restoration-era London. After his master is murdered by a secret society, Christopher uses the coded recipes, chemical knowledge, and puzzle-solving skills he learned to uncover conspiracies and survive.

Mark of the Plague (2016) sends Christopher into the Great Plague of London. The Assassin’s Curse (2017), Call of the Wraith (2018), The Traitor’s Blade (2021), and The Raven’s Revenge (2023) continue the adventures across Europe. Each book stands as its own mystery while building on Christopher’s larger story.

Frequently Asked Questions

How many books are in the The Blackthorn Key series?

There are seven books in the The Blackthorn Key series, published between 2015 and 2023.

What is the first book in the The Blackthorn Key series?

The first book in the The Blackthorn Key series is The Blackthorn Key, published in 2015.

What is The Blackthorn Key about?

The series follows Christopher Rowe, an orphan apprenticed to an apothecary in 1660s London. When his master is murdered, Christopher must use the codes, recipes, and tricks he learned to solve the mystery and survive. Each book presents a new puzzle-driven adventure set against real historical events like the Great Plague.

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