My husband never knew that I was the anonymous multimillionaire behind the company he was celebrating that night. To him, I was just his “simple and tired” wife, the one who had “ruined her body” after giving birth to twins. At his promotion gala, I stood holding the babies when he pushed me toward the exit.

At night she stared at the sky, amazed by the thousands of stars she had never noticed before.

And every evening she repeated the same promise to the baby growing inside her.

“I won’t fail you.”

Two weeks later she noticed something strange.

An old painting hung on the back wall of the house. It showed a stormy landscape—mountains, a river, dark clouds.

As she wiped the dusty frame, she realized it wasn’t simply hanging.

It was built into the wall.

Curious, she tugged at the frame.

The brittle adobe cracked.

Part of the wall collapsed inward.

Behind it was a hidden cavity.