Fifteen minutes later, Stuart strode up the driveway of number thirteen, spray bottle brimming with antifreeze in hand. As he approached the house, the front door opened, and Sarah Jane appeared.

Nice bloody try, Stuart thought.

'My, you were quick,' said Stuart, pseudo-surprised. ' All right, here's-'

Sarah Jane smiled - yep, it was that smile.

The familiar brown scaly figure appeared, and bolted into the house.

This time, Stuart thought, starting after it.

He caught the tail-end of it vanish into the living room. As he entered and aimed, it stumbled and screeched, dodging each vicious spray of its kryptonite. It bound out of the living room, and into the kitchen.

Ha - cornered!

He had it now. He-

Stuart jarred.

He gasped, feeling the hot blade slide through him.

The cornered shapeshifter - no.

'An - Andrea?'

She nodded at the other one, which wrenched the blade out, and Stuart hit the floor like a ragdoll, as did the spray bottle.

Andrea lifted the bottle.

'Oh, my dear Stuart, what were you going to do with this?' she said, then tipped it on the floor. 'Kill me...again?'

'Nice...try,' he wheezed.

Andrea studied him head to toe.

'Goodbye, Stuart.'

Blue light shrouded both shapeshifters, and they vanished.

Stuart could see the front door. So close, but so far. One almighty push, then a cry of pain. A little closer to the door, but also to death.

Sarah Jane walked up her driveway, checking her mobile again.

Perhaps Stuart wasn't here yet, she thought.

She headed for the front door, pushing it open.

No.

'Stuart?'

He was still, almost as though he was asleep, his hand stretched towards the door. From the living room, Sarah Jane saw a messy trail of blood lead to where to he lay.

She knelt before him, and looked, as tears streamed down her face.

'Oh, Stuart.'

The End