Lumi is an Earth-born healer whose Mars-born spouse Sol disappears unexpectedly on a work trip. As Lumi begins her quest to find Sol, she delves gradually deeper into Sol's secrets - and her own. Part space-age epistolary, part eco-thriller, The Moonday Letters is also a love story between two individuals from very different worlds.

Emmi Itäranta is a Finnish author nominated for the Philip K. Dick Award and the
Arthur C. Clarke Award. She is based in Finland.