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Is It Someone You Know?

A Detective Jennifer Cot Mystery

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Pub Date 24 Mar 2026 | Archive Date 27 May 2026


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Description

In this gripping and emotionally charged mystery, young boys in Levittown, New York, are being attacked and brutally murdered – and it all begins when young Devin Mastro crosses paths with a serial killer.

Detective Jennifer Cot of Levittown’s Eighth Precinct knows her team must act fast to catch the killer, but a chilling premonition warns her this is only the beginning for the self-proclaimed killer who wants to be known as Phoenix. Clues at the crime scenes are scarce, yet eerily specific: a single bloody sneaker and a blood-red sealing wax dot on the victim’s forehead.

Can Detective Cot stop Phoenix before another boy becomes the next victim?

With characters you’ll love – and some you’ll loathe – this mystery also weaves in two blossoming romances that will leave romantic hearts satisfied, even amid the darkest of crimes.

In this gripping and emotionally charged mystery, young boys in Levittown, New York, are being attacked and brutally murdered – and it all begins when young Devin Mastro crosses paths with a serial...


A Note From the Publisher

Jill Carol’s father had an exceptional grasp of the English language, which he graciously passed on to her. Jill’s love of reading, made her stretch her imagination and writing talents to create her debut mystery novel: Is It Someone You Know? A Detective Jennifer Cot Mystery.
In 1986, Jill received her Bachelor of Science Degree (Cum Laude) from Adelphi University in Garden City, NY.
As the Small Business Liaison Officer at Brookhaven National Laboratory (BNL) in Upton, NY, Jill used this gift in her professional life. She wrote two highly detailed proposals that both won the U.S. Small Business Administration’s - Dwight D. Eisenhower Award of Excellence - in the Research and Development category. The first award was presented in March of 2009 and the second award was presented in May of 2016. Both awards were presented at the White House, in Washington, D.C.
In 2017, Jill retired from BNL and moved from NY to the suburbs of Nashville, TN with her husband Jeffrey and their two dogs.
Jill hopes you enjoy reading this novel as much as she enjoyed writing it. She would love to hear from you in an email to jillcarolauthor.com.

Jill Carol’s father had an exceptional grasp of the English language, which he graciously passed on to her. Jill’s love of reading, made her stretch her imagination and writing talents to create her...


Advance Praise

"Is It Someone You Know? by Jill Carol is a tightly constructed thriller. Jen is balancing professional determination with personal vulnerability, and Brian adds warmth and grounding to Jen’s journey. The growing relationship between Jen and Brian lightened the dark and heavy mood of the plot. Detective Shea’s instincts provide a turn in the investigation. Trust, intuition, and the evil of the crimes are explored. The story was fast-paced, but it gave me enough time to process everything. I was turning the pages as fast as I could to find out who the killer was. I was easily drawn into the psychological and investigative aspects of the story. The book was excellently written and had me hooked from the start." - Reader's Favorite

"Is It Someone You Know? by Jill Carol is a tightly constructed thriller. Jen is balancing professional determination with personal vulnerability, and Brian adds warmth and grounding to Jen’s...


Marketing Plan

Press Release/One-Sheet

Goodreads book page Social media outreach

Live virtual events

Customized book announcement email

Editorial reviews

Strategy calls with publicist

NetGalley campaign

Press Release/One-Sheet

Goodreads book page Social media outreach

Live virtual events

Customized book announcement email

Editorial reviews

Strategy calls with publicist

NetGalley campaign


Available Editions

EDITION Paperback
ISBN 9798901740866
PRICE $18.99 (USD)
PAGES 316

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