Backworlds Box Collection Books 4, 5, and 6. The Backworlds, #11

The galaxy beyond the Backworlds is rife with trouble. The desperate search to save a friend ends in the discovery of an unstoppable enemy. This boxed set contains books 4, 5, and 6 in the Backworld series: Beyond the Edge, Worlds on Edge, and Precipice. Beyond the EdgeSome truths are better left unfound. For two years, Lepsi has been missing. A haunted spaceship has a message from him. Maybe Lepsi isn't dead.
Craze and Captain Talos travel to uncharted worlds, searching a region of the galaxy beyond the Backworlds. Out there, they stumble upon a terrible truth. Worlds on EdgeHome is worth the fight. War is coming. A horde of merciless aliens poise just beyond the Edge. Racing ahead of the apocalypse, Craze rushes to warn his people and plan a defense. Only, he can't go home. Banned from Pardeep Station, he must wage another war to save his home. PrecipiceSalvation comes at a price.
A new enemy wants to destroy the galaxy. The Fo'wo's want another war. Annihilation is coming to the Backworlds, and Craze's option to prevent the genocide of his people is a nightmare. The best chance for survival is to overcome a century of hate and forge an alliance with the Fo'wo's. If he succeeds, Craze will be the most hated man in the galaxy.