My stepmother called at 11:47 p.m. on the first night in the beach house I bought with my own money and told me she and my father were moving in the next day, that they were taking the master suite, that her daughter would get the best ocean-view room

Meanwhile, inside the house, she gave me the one gift vain people often hand their enemies without realizing it: repeated proof of character under ordinary conditions.

She practiced her Philanthropist of the Year acceptance speech in my kitchen while the dishwasher ran behind her and the ocean went gold through the windows. She said things like “service means showing up even when no one sees” while wearing earrings worth more than most people’s mortgage payments and funded, as the bank trails increasingly indicated, by siphoned money from my father.

She told me to wear something simple to the gala because “the evening isn’t about you.”

She referred to Khloe’s room as “the proper suite” and my smaller room as “your little retreat,” as if demotion improved with softer vowels.

She corrected the florist, the chef, the caterer, the valet company, the event planner, and one unfortunate local magazine editor who had the misfortune to ask whether Vanessa’s commitment to civic work had always been inspired by family. “Goodness, yes,” she said, touching my father’s wrist. “Daniel and I share values.”

I was standing three feet away when she said it.

Khloe, for her part, stole less money and more oxygen. But she had absorbed Vanessa’s operating manual perfectly. She floated through the house with expensive aimlessness and expected the world to confuse her curation for substance. She asked whether I could switch rooms permanently because the service-drive view was “actually kind of grounding for someone like you.” She borrowed a pair of my sunglasses without asking and then told me I should be glad they got “real exposure.” She ordered meal deliveries on my accounts, billed facials to the house under vague “hospitality” charges, and once had the spectacular nerve to tell a guest at a terrace lunch that I was “staying with us for a while while work got less intense.”

I heard that sentence from ten feet away while setting down glasses I should never have been carrying in the first place.

The guest, a silver-haired donor type with an expensive tan and a face permanently arranged into pleasant interest, looked between us. “Oh, how nice.”

I smiled at him.

“It’s very temporary,” I said.

Khloe laughed like I had made a charming joke. Vanessa, from the head of the table, did not look up from buttering her fish.