Rook took aim and fired. The grenade covered the hundred feet to the crystalline goliath and exploded. The force of the explosion pushed the monster to the side, but did no other damage. The crystals were strong.

Very strong.

As he turned to run, Rook once again tripped on the bony carpet and fell to his hands and knees. The ground shook with vibrations as the crystal creature pounded toward him, crushing bones beneath its tree trunk–like limbs. It had no trouble moving about the bone city.

Rook rolled over and emptied his clip at the beast. But the bullets simply ricocheted off. A cloud of dust billowed out in front of the creature as it charged through a sea of bones. With only seconds left before it trampled him, Rook prayed for Queen to show up.

But it wasn’t Queen who came to his rescue.

A blur leapt from the roof of a nearby bone building. The dark shape disappeared into the cloud of dust and struck the beast. The giant stumbled from the impact, but remained upright. Dust swirled as snarling howls filled the cavern. Then the howl turned to an ear piercing yelp. The smaller creature roared with pain before it was flung against the wall, where it lay still, a crystal impaled in its chest.

Though he still couldn’t see more than a vague shape, Rook felt the monster turn its attention back to him. He slowly reached for a grenade, ready to lob it by hand. But there was no need. A sound like breaking glass rang out as the crystal giant fell, breaking into a mass of inanimate shards.

Rook regarded the pile of crystals for only a moment before running, as best he could, to the prone form of his rescuer. He recognized her immediately, and despite his nightmare experience with her kind, treated her as kindred in the wake of the unreal giants. “Red!”

He knelt beside Red’s body. He was glad to see her chest still rising and falling, but immediately knew there would be no saving her. The short, but thick female Neanderthal already had a pool of blood around her, oozing from the large chest wound.

“Red,” he whispered.

Her red-rimmed yellow eyes opened and what appeared to be a smile, made ghastly by her blood-covered two-inch canines, spread on her lips. “Rook. Father came back.”

He nodded. “I came back.”

“Red save you?”

“You did.”

She grunted and coughed up blood.

“What did they want?” he asked. “Why did they come here?”

Red looked into Rook’s eyes with the closest thing to kindness he’d ever seen in the species. “Bad words.”

For a moment, Rook thought she was remembering some of the more colorful phrases he’d shouted at her a year ago. But then her expression turned to terror. She took Rook’s arms in her hands and squeezed. Rook almost didn’t hear her past the intense pain she was inflicting.

“Can’t speak the bad words.”

Rook grunted in pain, and Red released him, falling back. Her eyes closing. “What are the bad words?”