An effortlessly rich and lyrical mystery wrapped in a love story that bends space, time, myth and science, perfect for fans of Octavia Butler and Emily St. John Mandel.

Sol has disappeared. Their Earth-born wife Lumi sets out to find them but it is no simple feat: each clue uncovers another enigma. Their disappearance leads back to underground environmental groups and a web of mystery that spans the space between the planets themselves.

Told through letters and extracts, the course of Lumi's journey takes her not only from the affluent colonies of Mars to the devastated remnants of Earth, but into the hidden depths of Sol's past and the long-forgotten secrets of her own.

Part space-age epistolary, part eco-thriller, and a love story between two individuals from very different worlds.

'The prose and worldbuilding were immaculate..Itranta knows just the right words to bring her world to life.' - The Fiction Fox Review

'It's impossible not to be enchanted by the sentences and the world-building in this novel..There's a description of the society on Europa that I am still thinking about, and when I do my heart skips a beat and my breath catches. The way magic and science interact is great and like nothing I've read since This is How You Lose the Time War.' - Going For Baroque Review

'[The Moonday Letters] is a thrill ride..Itranta cuts a diagonal swathe across Kim Stanley Robinson, Carlos Castaneda and Philip Pullman..Itranta's book does what solarpunk should do: it presents a bold vision, with a road map, and, crucially, it clarifies what hope is and what it can do.' - New Scientist Review

'One of the book gems that allows a reader to truly feel an experience and be in someone else's shoes..I really want to read Emmi Itranta's other books now!' - Library Thing Review