Get Mysteries By Mail.

Every month, Sherlock will assign you a challenging new mystery. Each week, you'll receive a letter with new clues.

Can you crack the case?

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Over 1 Million Letters Mailed

How Dear Holmes Works

step 1

Monthly Mysteries

Each month, Holmes will challenge you to solve a mystery.

step 2

Real Snail Mail

You'll receive three clue letters and one solution letter per mystery.

step 3

A Global Competition

Compete for the coveted title of Featured Detective (and a special prize).

"Engaging and well-written."

— Wirecutter/ The New York Times

What Crimes Will You Solve?

solve heists from home. cartoon.


Foil impending robberies, find stolen goods, and identify the cuprits behind curious disappearances.

solve murders and murder mysteries. cartoon.


Spot murderers, disprove their flimsy alibis, and find the clues that will put them behind bars for good.

Catch crooks and more. cartoon

And Much More

Break secret codes, solve riddles, and use your sleuthing skills to catch spies, forgers, swindlers, and more.

Listen While You Read…

As a Dear Holmes member, you’ll have access to the Dear Holmes members-only podcast via a personalized RSS feed.

After your letters arrive in the mail, open your podcast app of choice and listen to an audiobook-quality narration of your latest mysterious missive.

Want to practice sleuthing? You’ll also have access to recordings from past Dear Holmes mysteries.

Listen to a sample episode from a past mystery.

Know a Mystery Lover?

Send them Victorian-era mysteries.

Join Dear Holmes Learn More (FAQ)