The other grazers snorted, bleated, and ran hard—each animal zigging and zagging in a way Ada had never seen before, the grazers’ oddly jointed legs allowing almost instant changes of direction—until the entire herd thundered out of sight down a draw a mile or so to the north.

Odysseus dropped to one knee next to the dead animal and pulled the short, curved knife from his belt. With a few quick strokes he opened the abdominal cavity, pulled out organs and entrails—tossing them onto the grass except for what looked to be the liver, which he set on a small plastic tarp he had laid out next to him—and then sliced the hide back from one haunch, cutting a thick slice of red meat free and setting it on the tarp as well. Then he cut the dead animal’s throat, draining more blood onto the grass, and tugged his spear free, taking care not to break it. He carefully wiped the shaft and bronze point on the grass.

Still standing near the bush, Ada felt a wave of dizziness pass over her and decided to sit down on the grass rather than run the risk of fainting. Ada had never seen an animal killed by a human being, much less butchered and partially skinned so expertly. It was terribly . . . efficient. Ashamed of her reaction but not wanting to faint, she lowered her head toward her knees until black spots quit dancing around the circle of her vision.

Harman touched her back in concern, but when she waved him away, he began walking out toward the carcass.

“Stay there,” called Odysseus.

Harman paused, confused. “They’re gone. Do you need help carrying . . .”

Odysseus held up one palm to keep Harman where he was. “This isn’t what I’m hunting for. This is . . . Don’t move .”

Harman and Ada turned their faces to the west. Two white-and-black-and-red bipedal forms were approaching at very high speed, faster even than the grazers had fled. Ada felt her breath catch in her throat and saw Harman freeze.

The creatures ran toward the bloody grazer carcass and the kneeling Odysseus at more than sixty miles per hour, then skidded to a stop in a small cloud of dust. Ada saw that they were the birds they’d seen from the sonie—Terror Birds, Savi had called them—but what had been strangely amusing from high in the air, ostrichlike creatures strutting like awkward chicks—turned out to be, in truth, terrifying.

The two Terror Birds had stopped five paces from the carcass, their eyes on Odysseus now. Each bird was more than nine feet tall, with short white feathers on their muscular bodies, black feathers on their vestigial wings, and powerful legs as thick as Ada’s torso. The birds’ beaks had to be at least four feet long, wickedly curved, red around the mouth—as if dipped in blood—and controlled by powerful jaw muscles that bulged below the half-dozen long red feathers that protruded from the back of each Terror Bird’s skull. Their eyes were a terrible, malevolent yellow ringed by blue circles and set under saurian brows. In addition to their rending predator beaks, the birds had powerful footclaws—each as long as Ada’s forearm—and an even more wicked-looking claw at the bend of each vestigial wing.

Ada knew at once that this monster was no mere scavenger, but a terrible predator.

Odysseus rose, a long spear in his left hand and his bloodied spear in his right hand. The Terror Birds’ heads snapped back in unison, yellow eyes blinked at yellow eyes, and the hunting pair moved apart like well-choreographed dancers, preparing to attack Odysseus from either side. Ada could smell the carrion reek of the monsters. She had no doubt that those powerful, naked legs could propel each Terror Bird twenty feet or more at its prey—Odysseus—in a single hop, claws extended and ripping as the one-ton monsters landed. It was also obvious that the pair worked perfectly as a killing team.

Odysseus did not wait for them to get into position or attack. With lethal grace he cast his first spear—flat and straight and hard—into the muscled breast of the Terror Bird on his left, then wheeled to face the second bird. The first bird let out a terrible screech that froze Ada’s lungs, but it was matched a second later by a roar and howl from Odysseus as he sprang across the grazer carcass, tossed the second killing spear from his left hand to his right, and thrust the bronze point at the second Terror Bird’s right eye.

The first bird staggered backward, clawing at the spear protruding from its chest, snapping off the thick oak shaft. The second bird dodged Odysseus’ thrust by whipping its head back like a cobra’s. Obviously taken by surprise by being attacked by this small featherless biped, the bird hopped twice—carrying it ten feet backward—and clawed at the parrying spear.

Odysseus had to whip the unwieldy spear back quickly after each thrust to keep from having it torn out of his hands. Still shouting, the man stepped backward and seemed to trip over the bloody grazer carcass, rolling on his side.

The uninjured Terror Bird saw its chance and took it, leaping six feet into the air and coming down on Odysseus with talons and killing claws extended.

Still rolling, Odysseus came to one knee in a single fluid movement and planted the butt of the spear in the ground an instant before the Terror Bird came down on it with the full weight of its body driving the bronze point home, up through its muscled chest, into its awful heart. Odysseus had to roll again to get out of its way as the huge creature crashed lifeless where he had been kneeling.

“Look out!” cried Harman and began running toward the fray.

The first Terror Bird—pouring blood from the spear wound and broken shaft still embedded in his chest—was rushing at Odysseus’ back. The bird’s head snapped forward on six feet of feathered-snake neck and the huge beak snapped where Odysseus’ head would have to be if he retreated. But the warrior had thrown himself forward rather than back, rolling again, but with empty hands this time as the Terror Bird ran past him and then wheeled, twisting and turning almost as impossibly fast as had the oddly jointed grazers.

“Hey!” shouted Harman and threw a rock at the giant bird.

The Terror Bird’s head snapped high, the yellow eyes blinked at the impertinence, and the huge predator kicked forward toward Harman, who skidded in the dirt, said “Shit!” in a high voice, and scrambled back the way he had come. Suddenly Harman realized that he couldn’t outrun the monster, and he turned, legs apart, fists raised, ready to meet the Terror Bird’s charge with his bare hands.

Ada looked around for a rock, a stick, a weapon of any sort. There was none in reach. She leaped to her feet.

Odysseus swept up his shield and—using the grazer’s carcass as a springboard—jumped aboard the Terror Bird’s back, pulling his short sword from its scabbard as he did so.

The bird kept running in Harman and Ada’s direction, but now its neck was twisted around, head snapping, giant red beak clacking against Odysseus’ circular shield. Every time the massive jaws struck, Odysseus was knocked backward, but his legs were tight around the bird’s body six feet above the ground, and though he bent far back, like a trick horseback rider in the turin drama, he never fell off. Then, as the Terror Bird’s head swiveled around, finding Harman with its yellow eyes, Odysseus leaned forward and pulled the sword low across the giant bird’s white-feathered neck, severing the jugular.

He jumped off, landed on his feet, and ran to Harman’s side as the Terror Bird crashed to the ground and lay still not ten feet in front of them. Blood spurted five feet in the air and then the red fountain diminished and disappeared as the huge heart stopped beating.

Panting, covered with grazer gore and Terror Bird blood and grass and mud, his bloody sword and shield still held high, Odysseus grinned through his beard and said, “I only wanted one for dinner, but we’ll carve up the second one for leftovers.”