ZM's Secret Sound

The crime scene had no fingerprints, no witnesses, only a sound. 

Sound Keeper Brooke is back with a brand new case for you to crack with a $50,000 reward thanks to our friends at NEON.

If you think you know what it is, call 0800 DIAL ZM at 7am, 8am,12pm, 4pm & 5pm for your chance to guess the sound and win the cash. ☎️ 

OPERATION NEON FRIDAYS. 📺 Every caller who gets through on Friday will get a one-month standard subscription.

Clue #1 has been released. Check out what it was here. 

Missed an on air guess? Stay up to date with everything on ZM's Secret Sound instagram or review the guesses here.

Transmit your intel directly to Sound Keeper Brooke 📞

Send Sound Keeper Brooke a voice note through the free iHeartRadio app. If you're the first to correctly identify the Secret Sound, you’ll score $1,000 cash. 

ZM's Close Friends get early access to intel. I've already sent out a newsletter with non public information about the case. Who's to say I won't do it again.

Want early access to updates, hints, and winning tips too? 📂 Join the list so you're never left out of the loop again and follow @zmsecretsound on Instagram.

Discuss the case with fellow investigators inside HQ (aka our Facebook group). Join ZM's Close Friends Facebook group.

Looking for the latest TV series to watch? Or maybe you're keen to binge that show that everyone's been talking about… either way, NEON has got you covered. From all seasons of Yellowstone to the new Outlander prequel Blood of my Blood – you can get it on NEON from only $12.99 a month.

Play ZM, it could change your life $50,000 times over.

Ts & Cs Apply.