December 24, 2015
12:30 PM PST

As soon as Harmony and Bethany had found Marty Jr's grave at Oak Park Cemetery, tears came to Harmony's eyes as she read what was on the gravestone. It read, 'In Loving Memory Of Martin Seamus McFly Jr, Born June 17 1998, Died May 15 2012.'

'NO! No!' Harmony gasped quietly, beginning to cry. She then kneeled down in front of the gravestone, as she tried to reach out for it. Her hand went through, though.

'This can't be happening!' sobbed Harmony, with tears running down her cheeks. Looking at the grave, she read, in a shaky whispery voice, 'May 15 2012?' Then breaking down into tears, Harmony sobbed, 'No! Oh, please, God, no! No, please, God! Please God, no, this can't be happening! This can't be happening! This can't be...'

'I'm afraid it is happening, Harmony,' Bethany said, placing her hand on Harmony's shoulder. 'All of it. You see, because you were never born, you were never here to save his life. Are you starting to realize the effects you had on others?'

'Yes, I am,' Harmony said, as she wiped her eyes. 'Please, Bethany, I take back what I said. I do want to exist.'

'There is more that I need to show you,' explained Bethany. 'Come follow me.'

Harmony then followed Bethany to another gravestone, and she realized that it belonged to her cousin, Serena Jane Brown, who died five months ago.

'Serena?' Harmony gasped. 'How did she...' Then she slapped her forehead, as she began to realize something. 'Oh, I get it! She drowned in the lake, right? She kept walking deeper and deeper into the lake - and, because I wasn't there to rescue her, she ended up drowning.'

'Now you're getting it,' replied Bethany, nodding. 'It's such a shame, too. She was only five years old. Now we must head over to the McFlys' home.'

'Why?' asked Harmony, stunned. 'What do we need to see over there? I already know what happened to Marty and Marlene.'

'You'll see,' Bethany replied. 'We'll take the short cut. Hold my hand.'

As Harmony held onto Bethany's hand, the scene had changed around them.

oooooooooo

Harmony realized that she and Bethany were standing in the kitchen of the McFly's home. Marty Sr and Jennifer were there - along with Marty Sr's parents, George and Lorraine.

'I am so concerned about Marlene,' Jennifer said, sighing. 'I really think the death of her brother has taken a huge toll on her. She spends all of her time sleeping around. She very seldom even comes home, anymore. I'm very concerned about the boys that she sleeps with. I'm concerned she'll end up getting hurt.'

'I guess it's her way of coping with her grief,' Marty Sr said, sighing. 'I really wish she would come home. I really do love her dearly. You know, it's like we've lost both of our kids. Our son shouldn't have died. We don't want to lose Marlene, too.'

Harmony then heard another sigh. She turned to see that it was from Bethany, who was standing by the refrigerator.

'They don't have anything good,' Bethany said, sighing. 'They just have some leftover tuna casserole and two litres of white milk.'

'Well, look how depressed they are,' Harmony said, sighing.

'Try not to worry about it too much,' Lorraine said, soothingly. 'I'm sure she'll come back home, eventually. It'll only be a matter of time before she hits rock bottom.'

'I just wish she would come home for Christmas,' Marty Sr said, sadly. 'We haven't had a proper Christmas ever since...' Marty Sr then began to cry. '... our son died three years ago. He fell into the river, and the current drowned her.'

'We were destined towards a happy future,' Jennifer said, as she also began to cry, 'then this tragedy strikes us. I really miss both of our children so badly.'

'I wish we could go back in time to prevent his death from ever taking place,' Marty Sr continued, weeping. 'It's just too bad that Doc... Uh, it's just too bad that time travel isn't possible. I would do anything to bring our son back.'

'I understand how you feel honey,' Lorraine said, soothingly, as she placed a hand on Marty Sr's shoulder. 'We really miss our grandson, too. I mean, he did have such a promising future. He had so much potential, then his life was taken away.'

'I think we've seen enough,' said Bethany, as she reached out for Harmony's hand. 'It's time to go check on your grandparents, and see how they're doing.'

oooooooooo

Harmony and Bethany were standing in kitchen of her grandparents home. Clara was chopping up some vegetables for supper, when the phone rang. Clara set down her knife and went to the telephone. The name on the screen read Dr. Elyse Ann Golden.

'Hello, Dr. Golden,' said Clara, as she picked up the receiver.

'Good afternoon, Mrs. Brown,' replied Dr. Golden. 'Is Emmett home right now?'

'He's taking a nap right now,' explained Clara. 'So what are you calling about?'

'I'm the boss of Emmett's physician, Dr. Helen Reader,' explained Dr. Golden. 'I was so sad to hear that Emmett's IQ had deteriorated radically. He really contributed a lot to bringing out our advanced technology. We may not have hover-cars - or even hoverboards - if it wasn't for him. So how has he coped in the last five years.'

'Bethany!' Harmony cried out, in desperation. 'What happened to Grandpa?'

'Just listen,' Bethany said, quietly - as she was sucking on a cherry popsicle that she probably grabbed from the freezer, 'and you'll find out.'

'Well, he's doing a lot better,' replied Clara. 'He no longer feels this urge to take everything apart. I remember how, just a few days after the accident, he went out to his lab to dismantle the DeLorean and the station wagon. Then, about two weeks later, he burnt up all of his papers where he wrote down the results of his scientific experiments. He went through a severe bout of depression.'

'I can imagine he would have,' Dr. Golden said, gently. 'I mean, science was pretty much his life. It must have been frustrating for him to not have the same IQ as he had before the accident.'

'Oh, yes, to say the least,' Clara said, with a heavy sigh. 'He's doing much better, though. Although, the somewhat recent death of our granddaughter, Serena, had taken a bit of a toll on him. She was only five years old, and so adorable.'

'I'm so sorry to hear about your loss, Mrs. Brown,' Dr. Golden said, sympathetically. 'I'm sure she was one very precious little girl.'

Tears came to Harmony's eyes, as she realized how much she adored her cousin.

'Yeah, she sure was,' Clara said, as she began to cry. 'Why did she have to die?'

'Who really knows,' replied Dr. Golden, quietly. 'Well, when Emmett wakes up, tell him to give me a call back.'

'Yeah, I will,' Clara replied, as she wiped her eyes. 'Have a nice day, Dr. Golden.'

'You, too, Mrs. Brown,' said Dr. Golden, as she hung up and the screen went blank.

'Oh, Emmett,' Clara moaned, in desperation. 'Why did that drunk driver have to hit you on April 16 of five years ago?' Clara then headed towards the living room.

Harmony nearly gasped, as she remembered what happened on that date. She went pale, as she realized how Doc must have been injured.

'Are you all right, Harmony?' Bethany asked, gently.

'No, not really,' Harmony said, real quietly. 'I guess, because I don't exact in this world, I wasn't there to convince Andrew Hopkins' cousin, Sean, to take a taxi cab home. So, as a result, he crashed into Grandpa - and caused him to be injured.'

'You've got it, Harmony,' Bethany said, gently. 'You see, this one event started a chain reaction that led to your grandpa being permanantly injured - all because you weren't there to prevent that incident from ever happening.'

'Whoa, this is heavy,' Harmony breathed, stunned by the current situation.

'Come with me,' Bethany said, gently, as she reached for Harmony's hand. 'It's time to find out what happened to Sean Hopkins.'