Diana Rodriguez Wallach Books in Order

If you want globetrotting spy suspense: Proof of Lies → Lies That Bind
If you want supernatural horror: Small Town Monsters → Hatchet Girls → The Silenced
If you want contemporary friendship and family drama: Amor and Summer Secrets → Amigas and School Scandals → Adios To All The Drama

Diana Rodriguez Wallach was born in Ridley Township, Pennsylvania, during the Blizzard of 1978 and grew up in the Philadelphia suburbs with a Puerto Rican father and a mother whose parents were Polish immigrants. That mix of backgrounds would later show up all through her fiction, especially in stories about teens who feel split between places, families, or versions of themselves.

She didn't spend childhood planning to become a novelist.

Writing came easily, though. She studied journalism at Boston University, spent a semester in Madrid working at a university radio station, and after graduation moved to Manhattan. There she worked as a reporter and editor, learning how to write fast and clean. After living through the September 11 attacks just blocks from Ground Zero, she rethought what she wanted from work, moved back to the Philadelphia area, and joined a nonprofit focused on improving public schools.

The turn toward fiction came from a strange little nudge.

In late 2004, after a Salem psychic had once told her she would write children's books, Wallach had a vivid dream that she was the author of a young adult series. She took it seriously, started writing, and finished a novel in 2005. That first manuscript never sold, but the process stuck. Soon she sold the books that became the Amor and Summer Secrets series, following Mariana Ruiz as family, friendship, romance, and Puerto Rican heritage collide over one very complicated stretch of teen life.

Her career did not stay in one lane for long. She moved from contemporary YA into short myth retellings with the Mirror, Mirror Trilogy, then into international suspense with Proof of Lies and Lies That Bind. The Anastasia Phoenix books took her across Europe and deep into conspiracy territory, but they kept an emotional center too: a girl trying to figure out who she can trust when even her family history keeps shifting under her feet.

Then she headed toward the dark.

In Small Town Monsters, Hatchet Girls, and The Silenced, Wallach leans into cults, haunted histories, abandoned institutions, and the kind of fear that grows out of family secrets. Even when the setups get supernatural, her stories stay grounded in recognizable teen worries: belonging, grief, identity, first love, and the feeling that adults are hiding the real story. She also contributed an essay to Dear Bully: 70 Authors Tell Their Stories, drawing on her own middle school experiences.

A few things connect almost everything she writes. Her books often feature young women under pressure, strong settings that matter to the plot, and characters who are caught between worlds, culturally, emotionally, or both. Travel matters in her fiction. So do hidden histories. And she clearly enjoys throwing ordinary teenagers into situations that are way above their pay grade.

These days Wallach lives in the Philadelphia area with her husband, two kids, and two cats. She teaches writing, including work with the Highlights Foundation, and previously taught creative writing through Johns Hopkins University's Center for Talented Youth. That teacher side fits the books. They move fast, but they are also interested in how young people make sense of themselves when the ground shifts.

That has been her through line all along.