My husband took our daughter's birthday cake out of my hands and dropped it into a trash bin outside a Boston bakery.

"Elise, please don't ask questions yet. Just take them."

My hands shook against the steering wheel as I parked outside my sister's brownstone in Cambridge. Elise stood on the porch in a thick knit sweater, her eyes widening as she took in June’s tear-stained cheeks and Owen’s crumpled paper crown.

"Mara, what happened?" Elise hurried down the steps, opening the back door of the SUV. "Where's Graham? Wasn't June's party supposed to start at your place in two hours?"

"Graham threw her cake in the trash outside the bakery," I said, my voice dead and mechanical. "And Beverly texted saying she has a migraine."

Elise let out a sharp, furious breath. "That miserable, controlling monster. Bring them in. I've got strawberry ice cream and June's favorite board games."

I bent down, kissing June's forehead. "You stay with Aunt Elise for a little while, okay, my love? Mommy has to fix a business problem. When I come back, we are going to have the biggest party this city has ever seen."

June looked up at me with Graham's dark hazel eyes, but none of his cruelty. "Promise?"

"I promise on my life."

Ten minutes later, I was driving through the Callahan Tunnel toward the Boston Seaport, my pulse pounding in my ears like a war drum.

*Seven years old.*

The cake inscription echoed in my mind. *Happy 7th Birthday, Iris. Love, Mommy & Daddy.*

June was eight today. Owen was four. Seven months pregnant with our third. The math was an ice pick straight through my chest. Seven years meant this other child had been conceived when June was barely a year old. When Graham and I were still sleeping tangled together in our first tiny apartment, promising each other that we were building an empire from nothing.

The Seaport was gleaming under the cold November sun. Glass towers rose against the steel-gray Atlantic harbor. I found Pier 4, an ultra-exclusive mixed-use development with luxury residences perched over multi-million-dollar private event spaces.

I pulled into the underground parking garage, parked in a visitor stall, and took the elevator up to *The Horizon Terrace*.

The doors opened onto a polished marble foyer. Across the entrance hung an arch of pearlescent balloons, sea-glass ribbons, and a giant foam-core sign printed with June’s sailboat design:

**WELCOME TO IRIS’S HARBOR ADVENTURE!**

Laughter and the clink of champagne flutes drifted from the open glass doors overlooking the water. Caterers in black vests were carrying silver trays of miniature crab cakes and caviar blinis.

I stepped behind a decorative wall of living ivy, my coat wrapped tightly around my belly, my heart beating so violently I could barely draw air.

Standing in the center of the terrace, dressed in a bespoke navy blazer and crisp white shirt, was my husband.

He was holding a flute of vintage champagne in one hand. His other arm was wrapped possessively around the waist of a tall, stunning brunette in an ivory silk jumpsuit. She was laughing, her head tilted back, diamonds catching the daylight at her throat.

Between them stood a little girl with Graham’s dark hair, wearing a white party dress with a navy-blue sash. She was blowing out seven candles on the elaborate twelve-inch nautical cake resting atop a silver pedestal.

And sitting at the VIP table right beside them, smiling radiantly as she clapped her manicured hands, was Graham’s mother, Beverly.