Welcome to Erin Mankie's Cabinet of Curiosity's, a production of I Heart Radio and Grimm

and Mild.

Our world is full of the unexplainable.

And if history is an open book, all of these amazing tales are right there on display,

just waiting for us to explore.

Welcome to the Cabinet of Curiosity's.

The test of any solid relationship is how well two people communicate.

Are they withholding and distant?

Or do they share everything openly?

And that doesn't just go for couples either.

Communication between friends and business partners is also very important.

But good communication is perhaps most crucial between two divers.

After all, if you want to know if you're about to swim into a dangerous cave system,

or if there's something wrong with your oxygen tank that you can't see, you need a friend.

In May of 1984, a pair of navy divers happened to be working on underwater repairs to the

whale enclosures in San Diego Bay.

For those times when they needed to communicate with the surface, they used a specially designed

underwater comms device known as a wet phone.

But one day, the divers heard someone yelling at them.

He kept shouting out, out, the voice was unmistakable.

There was no way this was a trick of the ear.

Someone was frantically telling the men to get out of the water.

...