Chapivosh and Ophamech chased after her, they were quick, almost as quick as her, but not quite. Suddenly, Zina stopped and spun on her heel to face them. They were metres away, close enough that she could see every line on their faces. She glanced at the Doctor and then at Donna before throwing the diamond towards them. The Doctor caught it, one handed, a feat he probably would have been proud of if he hadn’t seen what was coming.
“Zina.. Don’t” he called out, but he knew it was pointless. She’d decided. Within a second of the diamond leaving her hands, Chapivosh had gripped her around the throat, squeezing the air from her lungs as she struggled to press together the two pieces which would pull the three of them into the tiny diamond.

With a spark, the parts connected, and the trio became trapped within beams of light, gradually shrinking. Zina’s body fell to the ground, motionless and broken as the beams of light pulled Chapivosh and Ophamech into the diamond. Within minutes, they were trapped forever. Donna gasped, running over to Zina and turning her onto her back.
“There has to be something we can do..” she said, tears running down her cheeks.
“Donna..” the Doctor had a warning tone in his voice as he pulled his red-haired companion backwards slightly
“What? What are you doing? We can help her!” Donna struggled against him, fighting him to get back to the teenager, knocking the diamond he still held out of his hand and onto the floor. “She saved us, we have to help–” Donna stopped moving, her eyes fixed on Zina’s lifeless body as it began to glow, shimmering in the light
“What the–” she turned her head to look at the Doctor’s face
“After effect.. Like the after shock of an Earthquake” he whispered slightly
“But.. What?!” Zina’s body broke into millions of pieces, each one glittering beneath the setting sun, floating in the gentle breeze. The Star of Africa rolled across the dirt floor towards where Zina’s body had lay moments earlier and all of a sudden, the millions of shimmering pieces were pulled, like paperclips towards a magnet, into the diamond. Letting go of Donna, the Doctor picked it up, smiling sadly as the diamond sparkled, more than it had before.

Back in the TARDIS, the Doctor leaned against the jump seat, staring at the console, an almost pained expression upon his face.
“She wanted it” Donna spoke softly, her eyes echoing the pained look on his face. She had liked Zina, part of her had wanted to take her travelling with them in the TARDIS, the other part wanted to mother her.
“She had so much to look forward to, Donna.. She was 14″ the Doctor spoke for the first time since they had gotten back, shifting himself until he was actually seated on the jump seat.
“I know.. Believe me, I know… But we have to keep on going, keep on finding new places, new planets, saving lives. For her.. for all of them..” Donna thought briefly of Jenny, of Pompeii, even of Lance. People who had died, suffered at the hands of aliens, all people who had died so the Doctor could go on saving people, and a small tear ran down her cheek, sparkling like the Star of Africa.