A Thousand Paper Birds - Tor Udall

Jonah roams Kew Gardens trying to reassemble the shattered pieces of his life after the tragic death of his wife, Audrey. Weathering the seasons and learning to love again, he meets Chloe, an enigmatic origami artist who is hesitant to let down her own walls. In the gardens he also meets ten-year-old Milly, and Harry, a gardener, both of whom have secrets of their own to keep – and mysteries to solve.