It was just another day and Dipper was lying on the ground being bored, his sister Mabel lies down next to him "hey Dipper, what's wrong?" she asks. Dipper lets off a sigh and sits up "I don't know Mabel, I'm just bored", he replies
"Hey, don't be such a grumpy face", Mabel then sits up and pokes Dipper's nose "boop"
"AUGH, MABEL", Dipper brushes off Mabel "can you please not do that"
"Okay", Mabel the looks up "hey, isn't that the triangle guy that tried to steal the safe code in grunkle Stan's mind?". Dipper looks at what Mabel spotted "yeah you're right".
Bill Cipher, the thing Mable saw just noticed that the twins were looking at him so he approaches them "hey there you are, I was just looking for you"
"WHAT DO YOU WANT WITH US?" Mabel screams furiously
"oh you'll see"