The galaxy is a big place, and it's finally getting noisy again. Captain Eva Rostova and the crew of the Rusty Bucket did the impossible—they survived the Silence and saved the galaxy. Now, they're sitting in the black outside Cygnus's Aegis, waiting for the ancient Cygnian Drift to let them in. It's been twenty-one days of stale coffee and waiting, and those golden doors are locked tight. But the alien map in Eva's mind isn't finished. A new distress call is screaming from the edge of the void, and it isn't coming from anyone they've met before. It's a mystery calling from the Grave of Giants, and it's pulling the crew right back into the unknown. Between hostile planet falls and invisible laser grids, Eva, Sparks, and Hawk have to rely on their wits and the strange, biological data of the Tactile Phantoms to survive. The Rusty Bucket is back in the air, and the crew is about to find out exactly who else is out there listening.