Rebekah tried to keep the impact light as they stepped out of the Bifrost. She knew it hurt him all the same though, and swore violently under his breath. Why is it that most every Asgardian she knew had a goddamn hero complex. 
Rebekah grabbed the painkillers out of her pocket and took two out, handing them to him.
"Take some of these, you're about to pass out on your feet Tyson." Rebekah stated, as she went to his better side to help him walk. It was a long walk, the rainbow bridge was, and it was an extremely stupid idea if you asked her. What if someone needed immediate medical attention and you have to walk a good half mile to even get close to civilization? Someone didn't plan accordingly, obviously. 

Ahead of them was Lady Jane and Lady Sif, seemingly alone, which confused Rebekah to no end, since she'd assume her father and Prince Thor would be there as well.
"Lady Jane, Lady Sif." Rebekah nodded awkwardly, as she paused near them. Lady Jane's eyes were wide but Lady Sif went to Tyson's other side to help bring him to the infirmary.
"Lady Jane, if you could inform Prince Thor and Prince Loki that his son has returned I'd be ever so grateful." Rebekah said, the political etiquette feeling odd coming out of her mouth after two years if it not being necessary. 

"Of course...what happened Rebekah?" Lady Jane whispered in horror, obviously concerned for both Tyson and her home world.
"Later, if we may Lady Jane, I'd like to get Tyson somewhere where he can rest." Rebekah said, before she and Sif took Tyson into the castle. Both his room and the infirmary were on the second floor, which with the stairs was obviously not going to be an option. 
"My father's room is on this floor, let's bring him there?" Rebekah asked Lady Sif, who nodded. They brought him to Fandral's room, which wasn't vacated and looked still lived in, which eased Rebekah's worries about her father and Thor a bit. 
She helped get Tyson on the bed before getting him a cup of water from the sink, and waited for Thor or Loki to show up.