Everything inside me went still.

PART 12 — ACUTE MYELOID LEUKEMIA

Leo explained more carefully than our parents did.

Hannah had acute myeloid leukemia.

She had responded to initial chemotherapy.

Then relapsed.

Her doctors had gotten the disease under enough control that an allogeneic hematopoietic stem-cell transplant was now being considered her best chance for longer-term remission.

They had tested immediate relatives.

They had searched donor registries.

No ideal fully matched donor had been identified within the time window her team wanted.