The Ruby in the Smoke (Sally Lockhart, #1)

The book contains no sexual content or romance beyond very mild Victorian-era propriety.

Characters face threats from pistols and knives, and several deaths occur, including a drowning.

Occasional mild period-appropriate language and some rougher talk from London's criminal underworld.

There are a few instances of characters using God's name as an exclamation.

Opium addiction and the 19th-century drug trade are central, heavy themes throughout the plot.

Characters experience significant grief and trauma, but there is no self-harm or suicide content.

Mrs. Holland is a menacing villain, and the London slums provide a gritty, atmospheric tension.

The plot involves a 'curse' and opium-induced visions that some characters interpret as supernatural.

There are no LGBTQ+ characters or themes in this novel.

The story focuses on Victorian social realism and the harsh consequences of greed and crime.

While Pullman is known for later works, this book is a standard historical mystery.

Sally shows remarkable independence, bravery, and intelligence while facing dangerous criminals alone.

Faith is not a theme; the story relies on logic, evidence, and personal resolve.

Strong themes of loyalty and friendship develop between Sally and her new allies.

The plot is driven more by the pursuit of justice and truth than by mercy.