Reading order
| # | Title | Published | Author | Buy on Amazon |
|---|---|---|---|---|
| 1 | Shadow’s Captive | 2022 | Mary Stone | Buy |
| 2 | Shadow’s Deadline | 2022 | Mary Stone | Buy |
| 3 | Shadow’s Edge | 2022 | Mary Stone | N/A |
| 4 | Shadow’s Secret | 2022 | Mary Stone | Buy |
| 5 | Shadow’s Conspiracy | 2023 | Mary Stone | Buy |
| 6 | Shadow’s Darkness | 2023 | Mary Stone | Buy |
| 7 | Shadow’s Flame | 2023 | Mary Stone | Buy |
| 8 | Shadow’s Force | 2023 | Mary Stone | Buy |
| 9 | Shadow’s Hoax | 2023 | Mary Stone | Buy |
| 10 | Shadow’s Hostage | 2023 | Mary Stone | Buy |
| 11 | Shadow’s Mystery | 2023 | Mary Stone | Buy |
| 12 | Shadow’s Ritual | 2023 | Mary Stone | Buy |
| 13 | Shadow’s Watch | 2023 | Mary Stone | Buy |
Shadow Island provides a distinctive setting for Mary Stone’s FBI thrillers. The isolated island community creates natural tension: limited law enforcement resources, difficult escape routes for criminals, and close-knit residents with secrets they protect.
The series follows FBI investigations where the setting shapes the story. Suspects cannot easily flee the island, but neither can investigators call for quick backup. The tight community means witnesses know each other, creating complications when people would rather protect neighbors than talk to federal agents.
Stone has built Shadow Island into one of her larger series, with thirteen books as of 2023. The island itself becomes a recurring character, its geography and community dynamics affecting each new case.