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Margot Phalen FBI Books in Order

Part ofSierra Dean Books in Order

Follow the Margot Phalen FBI books by Sierra Dean in order, with summaries, series background, and a guide to her next chapter.

Last updated: July 14, 2026

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Margot Phalen FBI books in publication order

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2 books

1
New

Tell Me Her Name

by Sierra Dean

2026

FBI agent Margot Phalen's quiet life shatters when her partner Wes is accused of murdering a teenage girl. To save him, she must uncover links between a current case and a killer's old crimes.

2
New

The Wolf at the Door

by Sierra Dean

2026

Seven skeletons are found along the Appalachian Trail, seemingly tied to a convicted killer already in prison. FBI agent Margot Phalen spots evidence of a different predator, one who may be watching her.

Series background & context

Margot Phalen FBI continues the story of the detective introduced in Kate Wiley's earlier crime-thriller series. Margot is no longer only working local cases in San Francisco. She has joined the FBI, bringing her hard-earned investigative instincts and personal understanding of serial violence into a wider, more demanding role.

Her history has not become easier. Margot is the daughter of Ed Finch, a notorious serial killer, and that fact continues to shape how she sees suspects, victims, and herself. She knows that monsters can look ordinary, and she also knows the emotional cost of letting a case get too close.

In Tell Me Her Name, Margot is trying to build a quieter life on a remote California ranch with her partner, Wes, and a collection of rescue animals. That fragile peace ends when Wes is arrested for the murder of a teenage girl. Margot must investigate while confronting a serial killer known as the Sleeping Beauty Killer and the possibility that he did not act alone.

A fresh start can still have fingerprints on it.

The FBI series keeps the psychological tension of the Detective Margot Phalen books but changes the scale. Margot works with imprisoned killers, forensic clues, and cases that cross jurisdictions. Her relationship with Wes remains important, not as an easy escape from danger but as one of the few places where she can be fully known.

The Wolf at the Door moves the action into the Tennessee wilderness when seven skeletons are discovered along the Appalachian Trail. The evidence appears to point to a convicted killer already in prison, but the burial patterns suggest that a different predator may still be active.

Expect dark, fast-paced crime fiction with a capable but scarred investigator at its center. Start with Tell Me Her Name. Readers will get more emotional context by reading the earlier Detective Margot Phalen books first, but this FBI phase establishes its own cases, new professional setting, and ongoing threats.

Edited by

Richard Reis

Software engineer whose passion for tracking book recommendations from podcasts inspired the creation of MRB.

Anurag Ramdasan

Lead investor at 3one4 Capital whose startup expertise and love for books helped shaped MRB and its growth.

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