My ex-husband got full custody of our twin daughters and kept me away for two years. Then, one of them got cancer and needed a bone marrow donor—so I showed up. The doctor looked at my test results and froze. “This… isn’t possible.” What she said next completely destroyed my ex-husband.

Later, I brought Liam to Emma’s room. She looked at him carefully, recognizing her own features in his face. “Are you my real dad?”

Liam nodded, his voice thick. “Yeah. I am. And I’m going to give you my bone marrow to help you get better.”