Joseph’s reaction was not what Lelouch anticipated. He was… laughing. Not the kind of laugh that said he found something funny, exactly. More a dark and menacing laugh, that was warning of imminent pain for whoever it was directed towards. It sent a shiver down Lelouch’s spine. It felt just like… Just like he was being watched. The same feeling he’d been having all day! It must have been this man all the time.

“Not bad!” Joseph chuckled, inexplicably turning his back on Lelouch and staring at something on the desk. “However, the next thing you’re going to say will be ‘Oh no! Let me go!”

With a warning like that, what else could Lelouch do but will Painted Black to investigate. What was he looking at? His shadowy Stand drifted up towards the ceiling and stared down at the desk, which revealed to his horror ink spilled upon paper. When he had knocked over the inkwell, it had also spilled the ink. Somehow, Joseph had been able to use that ink to form a “map of the room”, which had a small “X” mark corresponding to Lelouch’s current location within the room.

“Oh no,” he breathed. If his Stand could be used in similar ways to “acquire information”, it would at least answer how he was able to - Something snaked out from underneath the rug and wrapped around his body. Vines. Thorny vines which scratched his skin and clothes. Lelouch attempted to call out, but could only manage a burbling “Let me go!” before something shot through his body and made the mundane task of speaking seem as impossible as climbing a sheer cliff face with no tools but your bare hands.

-Lulu's Bizarre Rebellion Chapter 21