Sienna stared at the file. At the name written in Arthur's meticulous handwriting.

**Lucia Tavares. Born March 15, 1991. Porto, Portugal. Mother: Ana Tavares (deceased 2019).**

"A daughter," she breathed. "Not a son. Arthur had another daughter."

"Thirty-five years old," Daniel calculated. "Older than us. Younger than you."

"Living in Porto." Sienna kept reading. DNA test. Paternity confirmed. Financial records showing support payments. Monthly. For thirty-five years. Until Ana's death. Then nothing.

"Do we burn this one too?" Sophie asked. "Or do we find her?"

Sienna looked at the sparse information. At yet another secret. Another sibling Arthur had hidden. Supported but never claimed.

"We find her," she decided. "She...