Previously...
Dipper scowled, "Come out, Goldie. I know you're watching us."
"Aw... you're no fun, Pine tree! You three sound just like Pine tree and Shooting Star combined..." A blonde haired man grumbled, appearing from behind the kitchen counter, looking over at the triplets.
The triplets ran over to him, "You're a demon, right?! How?! What can you do?! Do you have super powers?!" That last question was from Cosmo, who was smiling excitedly, "Do you know why I could see that man, when I'm blind?!"
"Yes... I don't know. A lot. If you want to call it that, then... sure. Yes, I do..." He mumbled.
Cosmo smiled, "Can you tell me?"
"... Well, you can see things from the other realm, the Mindscape, let's call it, Cosmo Galaxy. That's why you are blind. You're blind to the mortal realm. The same thing is why you are partly blind, Lunar Eclipse. Except, you can see both the Mindscape and the mortal realm sat the same time, which is pretty cool, I'd say... River Tides, you can hear things in the Mindscape from your left ear. That is your deaf ear, if I recall... So, while Lunar Eclipse can see both realms, you can hear both realms. Is that interesting?" He asked, smiling.
Cosmo gulped, "... is that why I can see you? How'd you know those names...?"
"Yes, that is. As you already know, I'm not a human... and neither are you three, in a way." He snickered, "Well, word's been going around about the boss' kids..."
The triplets were confused, "The boss' kids? Who's 'the boss'?"
"He's... well... how can I put this... interesting..." He mumbled.
River smiled, "Could we meet him?"
'You're meeting him right now...' He thought to himself, 'Ugh... I hate this... I didn't want those two to know, but... I have to.' He snickered, before looking down, "Probably not anytime soon, River Tides. I know that he'd love to meet you three, but... of course, he's really busy most of the time. Besides, his little brother... may, or may not, want to kill him... For two reasons... and, we can't have that, can we?"
The twins looked at each other in confusion. What was he talking about? Will doesn't actually want to kill him... right? They didn't know, and... if it was true, then... it wouldn't be good. Besides, what's this boss nonsense? What's that about? The twins had no clue.
The triplets shook their heads, "No... father shouldn't die..."
"Exactly. Anyhow, I'm sure your adoptive parents are worried about you... You should go," He smiled.
The triplets nodded, before hugging him, "We'll miss you..."
"Alright, you three... you should go, pumpkins..." He sighed, nodding over at Dipper, before looking at the kids, "I know you'd want nothing more than to meet your parents, and... this might help..." He slightly smiled, handing them a book with a gold cover, a letter, and a golden pen.
River smiled, taking them, before putting them in her backpack. She didn't notice, however, that Dipper was putting a few things in her siblings' backpacks. The other two kids picked up their backpacks, before running out of the town, happily running to their home.
"I assume I owe you an explanation for everything that I said?" He asked, once the triplets left, to the twins.
The twins nodded, "Does Will actually want to kill you? What's up with the "boss" stuff?"
"That's... a long story..."
A few minutes later, the triplets were inside their room, examining the book in confused.
"Maybe we have to write in it?" Cosmo suggested.
Luna nodded, "Maybe... hey, River, ask it a question..."
"Like what?" River asked, confused.
Cosmo's face brightened up, "What's your name?"
"Okay..." River mumbled, not seeing why they'd ask that to a book, before she wrote it.
The book responded, on written words below it, "B.C."
The triplets gasped, looking over at the spell book that was given to them, from their father. River immediately wrote back, "What does B.C. stand for?"
"Before Christ," was written on the book.
Cosmo smiled, messily, as he was not used to seeing anything, much less a book, writing down if it knew their names.
"Yes. Cosmo Galaxy, River Tides, and Lunar Eclipse... or, Cosmo, River, and Luna Pines..." the book responded.
Luna grinned, writing down if there was anyone else who went with the last name Pines.
"Stanford, Mason, and Mabel Pines," The book answered.
The triplets gasped, remembering the girl named Mabel that they had just met not much earlier. They all gulped, before breathing a deep breath, and then River wrote down, asking what they were.
"Half-bloods. Or... hybrids. Creatures from both realms... and may hold the connection between them and strengthen the connection."
"May?!" All three of them shouted, confused.
River sighed, shutting the book, looking at the letter, "Look. Let's look at this... and then we should ask Mabel, Dipper, and maybe that demon friend of theirs, if they know our parents... and if we are related to them... and also why we are half-bloods... hybrids..."
"Do you think that Mabel could be our mother? Maybe... our dad... loves her... and, as far as we know, both her and Dipper are human, right?" Luna asked.
Cosmo bit his lip, "I... could feel a connection. A connection between Dipper and that... demon friend of theirs. Didn't Mabel say that he was Dipper's boyfriend? What if... they were our parents?"
"Oh, come on, Cosmo! They're both boys! Besides, didn't he speak as if him and the boss, our father, were two different people?" Luna asked, not convinced.
"Sorry Luna, but... I have to agree with Cosmo on this one... Didn't he know a lot about us? As if we had met before? Besides, we don't know anything about demons, except that they have to do with the underworld... Besides, don't you think it's weird that he never told us his name?" River asked.
Luna sighed, giving in, "Yes, he did... Maybe... True... he never told us his name..."
"Besides... why would he have that book in the first place? Doesn't that raise a few questions?" Cosmo asked.
Luna admitted, "I don't know... Yes."
"Well... let's go tell them our theory."