Hope you guys like this. I found it super difficult to write so I'd love to hear what you think.

Chapter 17 – Route 666

The episode started with a man getting run off the road at night by a huge truck which appeared to disappear into thin air straight afterwards.

'Oh. It's this one.' Sam said with a grin. Dean groaned in response. They both knew what it was.

'Do we have to watch this one?' Dean asked. He tried to use the remote to skip it but for some reason it didn't work.

'Looks like we do.' Sam replied.

The scene then went to Sam and Dean outside the car. Dean had just received a call from an 'old friend'.

'An old friend?' John asked with a smile. Mary raised her eyes and looked at Dean in response. Dean sighed and sank deeper into his chair.

Sam questioned Dean on what he meant by 'old friend' and Dean said that he'd dated a girl called Cassie for a while and that she had phoned because her father had been killed by an invisible truck. Sam replied that he didn't think it was their kind of case.

'How did she know what we do?' John asked.

After Sam asked Dean the same question, he said that he'd told her the family secret and Sam had a go at him as he hadn't told Jess anything for two years.

'Really Dean? You told her after a couple of weeks?' Bobby asked.

'She must've been special.' Mary said, smiling.

The scene then cut to Cassie at her newspaper office and she argued with the mayor of the town who wanted the newspaper she worked for to sit on certain things about her father's death. Mary smiled. Sam and Dean then turned up and Cassie told them that something must have run her dad and his friend off the road and that her dad claimed to have seen a vanishing truck before it happened.

'Well that definitely sounds weird.' John commented.

She also said that the dent in the car looked like it had been run into except that there was only one set of tracks. She said that the cops thought that they both must have lost control of their cars.

'Within days of each other? When there were no other cars on the road?' Mary questioned disbelievingly.

Cassie's mom then appeared but said that she didn't feel up to questioning. That night, another guy saw the same truck.

'That guy's in trouble.' Cas said.

The next day Cassie talked to the Mayor, as another guy had been killed on the same stretch of road, and accused him of racism.

'I like this girl.' Mary said with a smile.

He replied that he was the last person to be a racist and that she should ask her mom.

'What's that supposed to mean?' John questioned.

'You'll find out later.' Sam said.

Back at the motel, Sam mentioned that Dean and Cassie are always looking at each other when the other wasn't looking. Dean didn't answer and tried to change the subject.

'I don't understand, why are you avoiding his question?' Cas questioned.

'That's sweet. You guys totally like each other.' Bobby said with a smile.

'Shut up.' Dean replied. He was beginning to feel very uncomfortable.

Sam and Dean then questioned the latest victim's friends. One of them talked about a string of deaths of black men in the sixties, committed by a large truck. Sam then went to find out more about the old case and Dean went to talk to Cassie and her family. Sam told Dean to talk to Cassie and Dean unintentionally told him that it was Cassie who ended the relationship, not him.

'So Dean has been dumped by a girl.' Cas remarked with a smile.

'Shut up.' Dean replied.

Dean turned up at Cassie's house and told her that he was looking into the connections between the victims. Cassie asked where Sam was and later Dean asked her why. Dean hung his head back and closed his eyes.

'Because otherwise it's just you two obviously.' Sam said.

She began to answer but Dean said that they should keep it strictly business. Cassie mentioned that she forgot that he kept trying to change the subject whenever things got emotional.

'She got you there. I never realised you did that.' Sam said.

Dean then reminded her that she ended the relationship. Cassie then told her that she believed that he was looking for a reason to dump her and he said that he was not and they kiss and have sex.

'Come on, we don't need to see this.' Dean said as everyone turned slightly red and turned away. Dean, who was bright red, hurriedly tried to skip it but for some reason it didn't work. He then sank as deeply as possible into his chair. There was an awkward silence before it finally ended.

'Thank god.' Dean said.

The scene cut to the next morning and the Mayor had been found dead, having been run over.

'That's weird. It doesn't fit the pattern.' John said.

Dean and Cassie then talked and Dean said that he didn't know why he told her and said that he couldn't lie to her. She said that maybe she was looking for a reason to walk away. Dean said that he was scared to work things out with her and she said that things work out if you really want them to.

'She's right you know.' Mary said.

'We should go and visit her some time.' Sam suggested.

'What makes you think it would end any differently to how it did last time either of us tried to have a normal life.' Dean asked.

'True.' Sam said.

'Dean, when did you quit hunting?' John asked. He was really surprised. He thought Dean loved hunting.

Cassie told him no more excuses. Dean was then interrupted by a phone call from Sam.

'Sam! You interrupted the moment.' Mary chastised.

It cut to the crime scene of the Mayor and Sam and Dean mentioned that it didn't fit the pattern. They then found out that the property where the mayor was killed used to belong to the Dorian family and they found that one of the Dorians, named Cyrus, disappeared. Sam then found out that the Mayor bulldozed the place the day before the first killing.

'Well that's clearly not a coincidence.' Bobby commented.

That evening Cassie saw the truck and she called Dean in a panic. She said that the truck appeared to be driving itself.

'Definitely sounds like Cyrus' spirit.' Cas commented.

Cassie's mom admitted that her husband did see the truck and he thought that it belonged to Cyrus. She mentioned that he died more than 40 years ago. Dean then asked how she knew he died as the paper said he was missing.

'Good question. I hadn't picked up on that.' John said.

She said that she used to go out with Cyrus but she left him for Martin, Cassie's dad. She planned to marry him at the local church but the night before the wedding someone set fire to the church which had a children's choir inside. Cyrus then attacked Martin who killed him in self-defence. Martin and his friends rolled the body and the truck into the swamp. She then said that the Mayor was a deputy then and he figured it out and let them go.

'So that explains what he said to Cassie.' Cas realised.

Sam then said that he missed normal things, including conversations that didn't start with 'This killer truck.'

'It's funny. I don't actually miss it as much now.' Sam said.

They theorised that Cyrus' spirit was awoken by the destruction his house. They then decided to drag the truck and body out the swamp. Cassie came out and asked to come with and forced Dean to ask her to stay inside.

'I've never seen Dean be forced to ask someone to do something before.' John said with a smile.

They then kissed and Sam cleared his throat.

'Man, why are you so awkward?' Dean asked.

'You've done the same thing to me!' Sam replied, making Dean go quiet.

Sam and Dean dragged the truck out of the swamp and burn and salt it but the truck appeared.

'Now it's really pissed.'

'Well done boys. All you did was piss it off.' John said sarcastically.

Dean led the truck away in his car.

'I don't think that's a good idea. That's how the others died.' John said.

'It would've run me over if I'd stayed.' Dean reminded him.

Sam then got Dean to tell him exactly where he was and he led him to where the church was because that was hallowed ground and so when the truck tried to enter it got destroyed.

'That was very clever Sam.' John said approvingly.

Once Dean found out Sam's plan he had a go at him as he did not know for sure it would work.

'Thanks a lot.' Dean said when Sam told him that it had not occurred to him that he could be wrong.

Dean and Cassie then say goodbye. Cassie said that she didn't see much hope for them and Dean told her that he had seen much stranger things happen.

'Man, I was so naïve back then.' Dean realised, making Mary frown.

Sam and Dean then drove away. Sam then said that he liked her and that it was people like her who made him question whether what they did was worth it. Dean didn't answer and asked Sam to wake him up when it was his turn to drive.