My sister-in-law, who couldn’t have children, began calling herself my baby’s “second mother.” Then came a series of strange incidents everyone told me I was overthinking—until I found my baby near an open upstairs window with her aunt nearby. That’s when I understood what she truly wanted.

The hatred lived in the silence between her words. It was a cold, palpable thing, like a draft in a sealed room. My sister-in-law, Bridget, had been trying to conceive for seven years—a long, agonizing road of negative tests and shattered hopes. I, on the other hand, had been married to her brother, Keith, for barely three months when the second pink line appeared.

When we announced the pregnancy, Bridget didn’t cry. She didn’t storm out. Instead, she smiled. It was a tight, brittle expression that didn’t reach her eyes, which remained flat and dead as shark glass.