After one great battle, the Architects disappeared. Yet humanity’s fragile peace is brief. For, 40 years later, the galaxy’s greatest alien enemy has returned. This time, the artefacts that preserved entire worlds from destruction are ineffective. And no planet is safe. The Human Colony worlds are in turmoil as they face extinction. Some believe alliances with other species can save them. Others insist humanity must fight alone. But no one has the firepower or technology to ensure victory, as the Architects loom ever closer.

The Lowlands’ city states have lived in peace for decades, hailed as bastions of civilization. Yet that peace is about to end. A distant empire has been conquering neighbours with highly trained soldiers and sophisticated combat techniques. And the city states are its desirable new prize. Only the ageing Stenwold Maker – spymaster, artificer and statesman – foresees the threat, as the empires’ armies march ever closer. So it falls upon his shoulders to open the eyes of the cities’ leaders.

Thousands of years ago, Earth’s terraforming program took to the stars. On the world they called Nod, scientists discovered alien life - but it was their mission to overwrite it with the memory of Earth. Then humanity’s great empire fell, and the program’s decisions were lost to time. Aeons later, humanity and its new spider allies detected fragmentary radio signals between the stars. They dispatched an exploration vessel, hoping to find cousins from old Earth. But those ancient terraformers woke something on Nod better left undisturbed. And it’s been waiting for them.

Idris has neither aged nor slept since they remade his mind in the war. And one of humanity’s heroes now scrapes by on a freelance salvage vessel, to avoid the attention of greater powers. Eighty years ago, Earth was destroyed by an alien enemy. Many escaped, but millions more died. So mankind created enhanced humans ­such as Idris - who could communicate mind-to-mind with our aggressors. Then these ‘Architects’ simply disappeared, and Idris and his kind became obsolete.

The Wasp Empire’s armies are on the move – and the city of Tark will be first to feel their might. Salma and Totho prepare for battle, alongside their Ant-kinden brethren. And within Tark’s walls, they’ll face a force greater than any Lowlander has ever seen. Stenwold Maker predicted this threat, and the Empire's secret service now deems him too dangerous to live. So he’s to be eliminated, and his beloved city of Collegium destroyed. For if this centre of learning is lost, it will crush Lowland resistance.

Civil war looms in the Bobiverse in this brand-new, epic-length adventure by Audible number one best seller Dennis E. Taylor. More than a hundred years ago, Bender set out for the stars and was never heard from again. There has been no trace of him despite numerous searches by his clone-mates. Now Bob is determined to organize an expedition to learn Bender’s fate - whatever the cost. But nothing is ever simple in the Bobiverse. Bob’s descendants are out to the 24th generation now, and replicative drift has produced individuals who can barely be considered Bobs anymore.

From Cixin Liu, the New York Times best-selling author of The Three-Body Problem, To Hold Up the Sky is a breathtaking collection of imaginative science fiction.

Achaeos the seer has finally tracked down the stolen Shadow Box. But he has only days before this magical artefact will be lost to him forever. Meanwhile, the Empire's dread forces are mustering for their next great offensive. Stenwold and his followers have only a short time to gather allies, before the enemy's soldiers march again – to conquer everything in their path. If Stenwold cannot hold them back, the hated black and gold flag will fly over every city in the Lowlands before the year's end.

Adrian Tchaikovksy's critically acclaimed stand-alone novel Children of Time is the epic story of humanity's battle for survival on a terraformed planet. Who will inherit this new Earth? The last remnants of the human race left a dying Earth, desperate to find a new home among the stars. Following in the footsteps of their ancestors, they discover the greatest treasure of the past age - a world terraformed and prepared for human life. But all is not right in this new Eden.

Nobody remembers how the Causality War started. Really, there's no-one to remember and nothing for them to remember if there were; that's sort of the point. We were time warriors and we broke time. I was the one who ended it. Ended the fighting, tidied up the damage as much as I could. Then I came here, to the end of it all, and gave myself a mission: to never let it happen again.

Humanity is struggling to hold out against a hostile takeover by an alien race that claims to be on a religious mission to bring all sentient life to its God at the End of Time. But while billions of cocooned humans fill the holds of the Olyix's deadly arkships, humankind is playing an even longer game than the aliens may have anticipated. From an ultra-secret spy mission to one of the grandest battles ever seen, no strategy is off the table. Will a plan millennia in the making finally be enough to defeat this seemingly unstoppable enemy? 

Ambassador Mahit Dzmare arrives in the center of the multi-system Teixcalaanli Empire only to discover that her predecessor, the previous ambassador from their small but fiercely independent mining station, has died. But no one will admit that his death wasn't an accident - or that Mahit might be next to die, during a time of political instability in the highest echelons of the imperial court. Now, Mahit must discover who is behind the murder, rescue herself, and save her station from Teixcalaan's unceasing expansion.

Firefly meets Mass Effect in this thrilling self-published debut! When Rosemary Harper joins the crew of the Wayfarer, she isn't expecting much. The Wayfarer, a patched-up ship that's seen better days, offers her everything she could possibly want: a small, quiet spot to call home for a while, adventure in far-off corners of the galaxy, and distance from her troubled past. But Rosemary gets more than she bargained for with the Wayfarer.

An alien armada lurks on the edges of Teixcalaanli space. No one can communicate with it, no one can destroy it, and Fleet Captain Nine Hibiscus is running out of options. In a desperate attempt at diplomacy with the mysterious invaders, the fleet captain has sent for a diplomatic envoy. Now Mahit Dzmare and Three Seagrass - still reeling from the recent upheaval in the Empire - face the impossible task of trying to communicate with a hostile entity.

Earth is dying, and humanity is scrambling to set up colonies in other star systems. But the search process for habitable planets is not perfect, as the crew of the Ouroboros discover on arrival at their new home.