The Botanist's Daughter by Kayte Nunn
A buried secret... Present day: Anna is focused on growing her new gardening business and renovating her late grandmother's house.
But when she discovers a box hidden in a wall cavity, containing water colours of exotic plants, an old diary and a handful of seeds, she finds herself thrust into a centuries-old mystery. One that will send her halfway across the world to Kew Gardens and then onto Cornwall in search of the truth. A lady adventurer...
1886: Elizabeth Trebithick is determined to fulfil her father's dying wish and continue his life's work as an adventurer and plant-hunter. So when she embarks on a perilous journey to discover a rare and miraculous flower, she will discover that the ultimate betrayal can be found even across the seas... Two women, separated by centuries.
Can one mysterious flower bring them together?