Reading order
| # | Title | Published | Author | Buy on Amazon |
|---|---|---|---|---|
| 1 | Dark Greed | 2021 | Mary Stone | Buy |
| 2 | Dark Power | 2021 | Mary Stone | Buy |
| 3 | Dark Purpose | 2021 | Mary Stone | Buy |
| 4 | Dark Malice | 2022 | Mary Stone | Buy |
| 5 | Dark Obsession | 2022 | Mary Stone | Buy |
| 6 | Dark Silence | 2022 | Mary Stone | Buy |
| 7 | Dark Bet | 2023 | Mary Stone | Buy |
| 8 | Dark Mask | 2024 | Mary Stone | Buy |
FBI Agent Charli Cross investigates murders where understanding the killer’s motivation is key to catching them. The series titles telegraph the dark drives behind each book’s crimes: greed, power, purpose, malice, obsession, and silence all push people toward violence.
Mary Stone uses Charli’s cases to explore criminal psychology. What makes someone kill for money? How does the hunger for power corrupt? When does obsession turn deadly? Charli works to understand these motivations not from sympathy but because understanding helps her predict what killers will do next.
The series builds on Mary Stone’s formula of capable female FBI agents facing both external threats and internal struggles. Charli grows across the books while each entry delivers a complete investigation.