Robbie gripped the the dirt and grass as if his life depended on it. Which it did. He stared up at the figure silhouetted against the starry sky. He wasn't sure if it was the darkness or the tears clouding his vision, but he could hardly see the face over him. But seeing the face didn't matter, Robbie already knew who it was watching him dangle off the cliff. It was the same person that had brought Robbie here and who had pushed him.
"What the fuck is wrong with you?" Robbie shouted shakily. As tough as he wanted to be, his voice betrayed him. The figure stared silently, sending chills down the teen's spine. "Babe, I don't understand..."
The figure began to laugh. It was soft at first, but grew in volume as he threw his head back and howled in delight. The laughter died quickly and the figure cocked his head to the side. "You always were pretty dull, but hey, what's the point of a sharp pawn, am I right, kid?" he cackled.
This wasn't Dipper. Robbie hated himself for not figuring it out sooner, but it wasn't the time for self-loathing. "Who – or what – are you?"
The imposter crouched down and leaned into Robbie's face. Up close, the teen could see that his eyes were illuminating a sickly yellow color. "Your worst nightmare, Stitched Heart," It whispered, iron wafting so strongly from its breath that it made Robbie's eyes water. The creature dug his nails into Robbie's hands with inhuman strength, piercing flesh and cracking fingers. The teen screamed bloody murder. The creature squeezed its hands tighter and Robbie knew most of his fingers were broken; besides the hot pain, he could see bone protruding from his own skin. It lifted Robbie up by his broken, mangled hands and held him out over the edge.
Robbie searched his thoughts for a way to get out of the deathly situation. As he stared into the now haunting eyes of his boyfriend a thought came to him. "Dipper, please, don't let me go," Robbie pleaded in a shaking voice, "You gotta be in there somewhere."
His eyes searched frantically in the glowing yellows ones staring back at him. Slowly, it turned its head to look at something Robbie couldn't see. It smiled a wide, toothy grin and snapped its head back at the teen. "Sorry, kid, he just can't lend you a hand right now," it laughed, fingers loosening their grip on Robbie's own hands until completely letting go.
Robbie watched the world above him get further and further away as he fell. Mist seemed to appear from no where. The night seemed to get darker. The wind got colder. And though he sailed to what would be his death, the glowing malicious eyes and toothy grin never faded.