The Earth Alliance is ready to establish dominance. The Night Owls must prepare for war. Ensign Ethan Keller of the fledgling Luna Navy has one mission: keep the moon's enemies away and its allies close. But the Earth Alliance has solidified control and is focused on reclaiming Luna. After an unexpected attack on Mars, the Night Owls discover the Earth Alliance's plan to destroy support for Luna. When the Martian Navy captures a notorious bomber, an old enemy forces Ethan to betray Luna's only ally to break him out. Wanted by Earth and Mars and far away from home, he and his friends are alone. Now, Ethan must prepare to muster a rebellion that will endanger those he loves while confronting a face from his past. For a sci-fi adventure, turn up the volume and fight back against the Earth Alliance with Amplitude: Night Owls Book 6. What readers are saying... ★★★★★ "Night Owls boasts a charismatic, increasing cast of core characters bound to pull out every emotion we can experience, and the titillating mysteries and ethical conundrums set against an ever-evolving political backdrop will keep you hooked in with action, spirit, and humor."