Second last chapter!

Science Assassin: Chapter twenty-one

The motroids stood stock still, guns pointed at the corner. Another small dart flew through the air, but the intended motroid dodged, and the dart slammed into the metal wall, falling to the ground.

"Who's there?" asked the Doctor. One of the motroids bent to pick up the major's fallen gun, but Donna kicked it out of the way and it went skidding round the corner. All was silent except for the sound of the person around the corner picking up the gun. Then, from around the corner came...Wanda!

"Wanda?!" asked the Doctor.

"Hello Doctor." Wanda pointed the giant weapon at the motroid army, which was defenceless now, with their tiny pistols looking like ants compared to the massive gun Wanda held. "Where have you been all day?"

"Collecting Donna." The fake doctor grinned. "That fool over there tried to impersonate me."

"No more fooling for you." Wanda pulled out Sir Robert's alien detector. "You're a motroid."

"I, I..." The motroid stared at the machine, shocked. The real Doctor laughed.

"No more pretending. The game is up motroids! I know your plan now."

"You may know our plan, but you don't know where our bomb is," one of the motroids said.

"Does this have anything to do with it?" Wanda held up a detailed map showing the whole of London. A red circle had been drawn over Big Ben. "I found it in the secret passage, in a safe. Picking the lock was easy." The motroids growled.

"You will regret this human!" One of the motroids aimed his pistol at Wanda, who pulled the trigger of the giant gun in panic. At once sonic waves flew out, emitting a super high pitched whine. Everyone clamped their hands to their ears, desperate to get the horrible noise out of their ears. Startled, Wanda dropped the gun. The Doctor picked it up and tried to turn it off. After hitting it a few times on the wall, the waves stopped and the room fell silent.

"Now, hands up." The Doctor aimed the gun at the motroids, who grudgingly lifted their hands.

"You may have caught us Doctor, but you're too late! The bomb is ready to go off at any second. We send the signal, and motroids waiting in the Big Ben will let it off."

"What is this bomb designed of?" asked the Doctor.

"Hew."

"Emits a loud, terrifying explosion with great force but no flames," explained Wanda.

"How did you find this place?" asked the Doctor to Wanda.

"Well, after I persuaded the science committee that you weren't the assassin, we came back to the hotel. Donna was gone from the nursing home, and I immediately smelled a trap. You wouldn't have taken her away so soon. So, I went exploring, and found the kitchen cupboard wide open, with packets strewn all over the floor. It wasn't hard to find the passage after that. As soon as I found that map, Arthur Dales guessed correctly about a bomb, with some help from other documents in the safe. Right now, him and the whole of London's police force are at the Big Ben, ready to arrest any motroids which enter. I got a call from him not long ago. They've found the bomb, disguised as a cog. Right now, Hue Hew is being called to collect the hew. How the motroids got hold of it no one knows."

The motroids were glaring at Wanda, furious. "I thought we arranged for the waiters to fix the cupboard," said the fake doctor.

"I arrived soon after you. There wasn't time for them to clean the cupboard."

"Now, I think you motroids have spent long enough on earth," spoke the Doctor. "You can't go back to Mars, so you'll have to be sent somewhere else. And I think I know just the place...."

More to come....