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Edge, December 2025
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Echo, December 2024
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Fall, December 2023
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Hide, January 2023
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Runner, July 2021
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What You Don't See, June 2020
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Borrowed Time, June 2019
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Broken Places, May 2019
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Broken Places, June 2018
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EDGE
By: Tracy Clark

Detective Harriet Foster #4
Thomas & Mercer
December 2025
On Sale: December 2, 2025
333 pages
ISBN: 1662517351
EAN: 9781662517358
Kindle: B0DQ1T58ZY
Trade Paperback / e-Book / audiobook
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Mystery Police Procedural | Thriller Political | Multicultural African-American

When a tainted drug starts claiming lives across the city, Detective Harriet Foster and her team race to track down the source…before it takes one of their own.

Chicago’s finest are scouring the city for a tainted new opioid making the rounds, but they’re coming up empty. With five people already dead—a college kid, a new mother, and three poker players—all they really know is the drug’s name: Edge. Where it’s coming from is still anyone’s guess.

Detective Harriet Foster doesn’t have time for guessing games. She needs answers. And when the next overdose hits Homicide where it hurts most, Harri is determined to get what she wants. But keeping her eyes squarely on the prize proves harder than expected.

Still reeling from her last case (and the stain of suspicion it left on her career), Harri finds herself at a tipping point. The drug isn’t the only edge she needs to worry about. If she can’t come back from her own, there’s no telling whether this investigation will lead to a satisfying conclusion…or her own demise.