Rachel Armstrong's follow-up to her critically aclaimed debut novel Origamy. Set in a near-future Venice, Invisible Ecologies tells the story of Po, an ambiguously gendered boy who shares an intimate connection with a nascent sentience emerging within the Po delta: the bioregion upon which the city of Venice is founded. The pair share a series of extraordinary adventures and, as Po starts school, stumble upon the Mayor's drastic plans to modernise the city and reshape the future of the lagoon and its people. How the critics reacted to Origamy: "Origamy is a magnificent, glittering explosion of a book: a meditation on creation, the poetry of science and the insane beauty of everything. You're going to need this." - Warren Ellis "Origamy crackles with a strange and brilliant energy, and folds the conventions of SF into beautiful new shapes. A rare and wonderful debut." - Adam Roberts "Perhaps the most astonishing and original piece of SF I've read in a long, long while." - Adrian Tchaikovsky "A visionary masterpiece. Science Fiction, Fantasy, science and poetry combine to create a lyric on life and death that spans the whole of creation. Delightful and mind-expanding. If you miss it you have missed one of the finest examples of literary art." - Justina Robson "The concepts, images, and settings found in this novel could easily power a quartet of more traditionally-arranged works..." - Tor.com "I'm still dumbfounded now." - SFcrowsnest "A whimsical, half-daft, drunken-prose-poem odyssey down alien byways. The closest thing to this book might be Italo Calvino's Cosmicomics." - Locus