C69 The Level of Evolution!

Observing the deformed zombie on the lab table, now reduced to a mere skeleton, Willett breathed a sigh of relief. He certainly didn't want to encounter such a thing again.

Suddenly, he noticed a defect on the zombie's remains—the left arm was gone!

"Where did that freakish left arm go?" he wondered aloud.

The Doctor, previously showing signs of fatigue, perked up with excitement