4 Free Ebooks to Read in June 2026 for Mystery, Thriller, and Crime Fans

Solve crimes with these mystery ebooks—free, this month only.

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camera-iconPhoto Credit: Martin Vorel

Those of us who are voracious readers can never get our fill. There is always some intriguing new mystery or riveting new thriller to devour, and an endless stream of new releases to add to our reading wish lists.

But sometimes you just crave a classic. These are the books that created the scaffolding for the genres we know and love—and they are just darn good.

Every month, we’re bringing you a selection of free ebooks to read that are perfect for all you timeless sleuths out there—lovers of all things mysterious and thrilling.

Death by Dragonfly

Death by Dragonfly

By Jane Tesh

Actor Leo Pierson’s treasures have been stolen—chief among them a glass dragonfly, believed to be cursed. 

David Randall, Grace Street’s private eye, is put on the case, and when members of the art community keep turning up dead, he’ll have to solve the murders before the curse gets him next!

Dandelion Murders

Dandelion Murders

By Rebecca Rothenberg

Microbiologist Claire Sharples starts a new job at a California agricultural station—only to run into trouble in the first week. 

When she uncovers unauthorized pesticide usage at a nearby vineyard, her investigation leads her to a body in the irrigation ditch.

The Pact

The Pact

By Hilly Barmby

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Much has happened in the twelve years since these old friends have been together. 

On New Year’s Eve, Michael decides to throw a party, inviting Hope, Sabine, and Elena, who all harbor secrets that threaten to spill over into the evening. 

The truth always comes to light—in this case, with deadly consequences…

The Notorious Sophie Lang

The Notorious Sophie Lang

By Frederick Irving Anderson

A classic, Golden Age mystery, Sophie Lang is the master of crime. 

She has made herself known among Deputy Parr and his undercover operatives, who would do anything to catch her. 

From insurance fraud to cutting down anyone in her way, follow Parr as he chases the mastermind through Manhattan.