The guards moved the pair to the cells but not without some more struggling on Elmfern's part. They were put in separate cells, probably to prevent one from attacking if the other one was taken out. The cell's were quiet for the most part except for the occasional drip of water from the ceiling. Rivet was grooming his feathers when he noticed his father's hopeless look. "Come on! It's not that bad. If he hasn't killed us yet he probably won't at all."
"That's what I'm worried about! What if he plans to torture us! No... No I would kill you before I let them do that to you." He wouldn't be able to bear to see him harmed like that.
"Thanks I guess?" At least his father seemed concerned for his well being. "Hey guard sir!" He called out to the closest guard to him. "Do you know of any reading material? I don't get to read very often and I'd like to before I'm killed or tortured or whatever your Rex decides to do with us."
The guard looked around for something harmless. Not many guards could read well but he was one of the ones with an at least basic literacy level. Here was something. He picked up some papers about proper cell maintenance and handed it to Rivet to keep him quiet. The guard preferred to not hear him ask questions like he had on his way to the castle.
This was made of some plant material. It was useless though as his magic needed a living plant to work. He snatched the paper and skittered to the ceiling of the cell hanging upside down with his talons digging into the looser pieces of brick. Most of these words were unfamiliar to him and he started laughing, "I can't understand half of this!" He wasn't even aware there were these many new words left for him to discover. "Guard! Guard! Please come here and tell me what this word means!"
The guard helped him with maybe three words before ignoring him. He had too many questions he didn't feel like answering and was starting to wish his Rex had simply killed him. Elmfern seemed just as peeved by all his son's questions and tried covering his ears so he could sleep.