Otherlands is an epic, exhilarating journey into deep time, showing us the Earth as it used to exist, and the worlds that were here before ours. Award-winning young palaeobiologist Thomas Halliday immerses us in a series of ancient landscapes that underscore the tenacity of life and the fragility of seemingly permanent ecosystems – including our own. To read it is to see the last 500 million years not as an endless expanse of unfathomable time, but as a series of worlds, simultaneously fabulous and familiar.