From USA TODAY bestselling author Maureen A. Miller comes an emotional sci-fi mystery.

Six years ago, Marda lost her husband and daughters to a portal linking Earth to her planet. It was supposed to be safe—just an ancient corridor between two worlds. But sometimes, people get trapped inside it.

Marda calls that place the BETWEEN.

Now, the portal is acting up again. People are vanishing from Central Park, right in the heart of one of Earth’s busiest cities.

Ben—a Wall Street analyst too consumed with his job to notice the damage he leaves behind.

Lily—a would-be musician suffocating inside her childhood home.

Tony—a young man who gave up everything to care for his dying mother.

Their paths collide inside the BETWEEN.

But only Marda knows what’s waiting there—and she’ll risk everything to bring her family home.