The Dutch Wife — Eric McCormack

Rachel, the mother of the aging professor Thomas Vanderlinden, shared her life with two men. Both went by the name of Rowland Vanderlinden. The first husband went abroad and never returned. The second, whom Rachel also unquestioningly accepted as her husband, was a mystery.
In an attempt to understand his mother's adventurous decisions regarding love and marriage, Thomas sets out on a journey to the far reaches of the Pacific to find the first Rowland, and his real father. As the mystery of the two Rowlands unfolds throughout the novel, so too does a fascinating portrait of one woman and the choices she makes. Set before a backdrop of fantastical places, The Dutch Wife is a profound meditation on the nature of love.