To say Dipper was mad was an understatement. A very huge understatement, at that. There were no words to describe the full magnitude of the raw emotion, the raw anger, that he felt.
His sister, Mabel, the only one he felt he could trust completely. And yet, she trusted the word of a conman, their uncle, over that of her brother's. But one single thought haunted him: Was he even their uncle? Or, as they preferred to call him, grunkle? What if that was all a lie? Some sort of masterfully crafted plan they never knew about?
Dipper was too enraged to even consider Stan his grunkle anymore. What could possibly be worth risking the destruction of the universe?
All Summer, he had been excited to discover the identity of the person who wrote the mysterious journals. When, or if, he ever found out, he thought he'd be elated.
But now, he couldn't even find it in himself to care. He couldn't even find it in himself to care that the questions that kept him awake at night could finally be answered. All his previous excitement, gone without a trace.
The thoughts of the recent events overwhelmed him, and in a fit of emotion, Dipper powerfully kicked a tree as if it had done something personally to offend him. He kept on kicking the same tree for a while, until he didn't even care about that anymore.
Dipper sat down to reflect on what had just happened. And he longed for the nostalgia of the last week. Before this whole mess happened. Before he found out his grun-
No, his mind hissed, Stan, was possibly a criminal mastermind.
In just one day, his entire world, everything he ever knew, everything he ever thought, had been flipped upside down.
Dipper sat there for what seemed like hours, wallowing in his depression, misery and rage, until a dreaded familiar figure materialized.
Bill Cipher.
"Well, well, well, Pine Tree." Bill drawled. "You've gotten yourself into quite the predicament."
Dipper sent a vicious glare towards the demonic nacho. "What do you want this time, Bill? Trying to take advantage of someone who's vulnerable?"
Bill looked amused. "Tsk! So quick to kill, aren't you, Pine Tree? No, I'm here to offer you a deal."
Warning bells went off in Dipper's head. Bill's deals never ended well for anyone who took them. He learned that from experience.
"Yes, and that worked out terrifically the last time. When you used my body as a puppet and tried to destroy the journal!" Dipper replied in bitter sarcasm.
"Why should I ever trust you after that and when you-" Dipper stood frozen, not finishing his sentence. But he didn't need to.
"You mean when I tried to steal the code from your good ol' grunkle, hmm?" Bill responded easily.
"Don't call him my grunkle." Dipper hissed dangerously.
"Ooh! You've got fire in you, huh kid?" The demon laughs, not at all phased by Dipper's tone. "Look Pine Tree, I know how your sister betrayed you for that conman who is supposedly-" Bill put large emphasis on the word supposedly, "-your uncle. I'm here to help you get the life you want. I've seen your mindscape, and boy, is it not as pretty as it used to be." Finished the dorito.
Dipper was too mentally unstable to catch onto the mindscape part. And onto the list of already unstable emotions, there was now fear. Because a part of him actually wanted to trust Bill, despite the incident with the puppets where he was left in a ghost-like form and despite him trying to steal the code. The rational side of his mind, however, screamed at him what a horrible idea it was. And yet he had to refrain himself from accepting and taking the demon's hand. He actually did end up reaching out, but just in time, he caught himself and asked, "What's the catch?"
Bill was exasperated. "Does there always be a catch? I'm doing this to help you, honest!"
His mind, the rational part at least, screamed "Lie!" but his memories began flooding in. In specific, the memories in which he had to sacrifice something for Mabel what now seemed to be countless times. From the gnomes that tried to make her their queen for all eternity when she refused to listen to his warnings, helping her with some stupid pointless puppet show when she thought her random crush of the week was more important than potentially uncovering some major secrets by helping him with the laptop code, relinquishing his job at the pool to help yet another random crush of hers, a merman creatively named Mermando, sacrificing a chance with Wendy so she could win her pig...and yet she still trusted that conman over him.
Overcome with emotion as suppressed rage and resentment filled his veins, he shook the demon's hand and said, "Deal."
Edited 9/3/16.