Sonny Tumble clutched his stomach and spat out his lollipop in Grandad Tumble's proffered hankie.
''This is how it begins!'' Anna warned.
Sonny was looking extremely peaky. Mr Tumble picked up the massive conker Sonny had dropped and started swinging it round by it's string,completely oblivious to Sonny.
Sonny didn't feel very well at all. ''i feel poorly'' he said pouting.
Grandad Tumble gently tugged at Mr Tumble's shirt sleeve and pulled him into the hallway. Together they watched as Sonny bent double and clutched his stomach.
''Come on The Boy,'' Grandad whispered to the conker-twirling Mr Tumble,''let's get out of here.''
''WAIT!'' Demanded Anna. ''you can't leave him,he may spread the infection!''
''urgh!'' said Mr Tumble pulling a disgusted face.''well what do we do?''
Sonny collapsed to the floor face down and started shaking violently before making a sickly choking noise and finally becoming still.
''You must either seperate his brain stem from his body or destroy his brain.'' Anna instructed.
Grandad gasped in horror.
Mr Tumble screwed his face up, ''destroy his brain?''
''Yes Mr Tumble,destroy his brain.'' Anna confirmed.
'Go on The Boy,break his head.'' Grandad patted Mr Tumble on the shoulder and gently shoved him towards the two corpses on the floor.
For a few moments Mr Tumble stood rooted to the spot unsure what to do,then Sonny slowly began to get up. Mr Tumble squealed and ran back to Grandad Tumble. They trembled with terror and hid their faces in their hands.
Sonny Tumble turned in jolts and starts like something from a video played on a slow computer. As he faced them they noticed a dramatic transformation had taken place. Sonny's eyes were totally red and he snapped his mouth open and growled like an angry dog.
Grandad screamed and ran as fast as his old legs could carry him,Mr Tumble follwed suit.
''Wait!'' Screamed Anna as the Tumbles bolted for the front door and were busy fighting to get out. Grandad pointed over Mr Tumble's shoulder, ''look,there's Cliff Tumble!''
Mr Tumble momentarily forgot the danger he was in and turned to look for his favourite singer with a beaming grin, ''Where?''
Taking this opportunity Grandad fumbled at the latch on the front door.
Sonny staggered up the hallway snarling and dribbling dark red blood from his mouth.
''Eyyy!'' Yelled Mr Tumble when he realised Grandad had duped him and yanked Grandad's flatcap down over his eyes and grabbed the waistband of Grandad's long-johns. Mr Tumble pulled upwards and gave Grandad a wedgie that almost drew blood.
Mr Tumble was out of the door before Grandad knew what had happened and raced down the path and into the garden.
Grandad screamed when he felt his duffel coat snagged in Sonny's fingers. ''Help me!''
Mr Tumble stopped running and turned back to Grandad.
Sonny was behind Grandad biting his shoulder. Sonny spat out a chunk of Grandad's coat and lunged for him again.
Mr Tumble had to do something.
''Do something Mr Tumble! You MUST help Grandad Tumble!'' Ordered Anna hysterically inside his head.
Mr Tumble thought about what Anna and Grandad had said, ''Destroy his brain. Break his head!''
Mr Tumble closed his eyes and imagined he was his favourite wrestler Rumble Tumble. He rolled his shirt sleeves up and noticed he still had Sonny's conker in his hand. It really was a big one.
''Ah ha!'' Said Mr Tumble and pointed a finger in the idea as the imaginary lightbulb of an idea flashed above his head. Swinging the conker on it's string like a slingshot he ran towards Grandad and Sonny shouting the war cry, ''Anyone for conkers?!''