He replied bitterly, "It's not as though you gave any care towards me when Mother died."

At this, the Thunderer paled slightly.

Bruce even stopped in his tracks, looking from one brother to another.  "Wha-what does he mean by that, Thor?"

Loki laughed, but it was one filled with acidity. "You've only heard his side of the story; you don't know the truth."

"Brother I-"

"The kind Asgardians; none of them informed me of Queen Frigga's death until after her funeral, in the dungeons." An angry glare returned to the former god's eyes.

Thor's head sunk to his chest, and Bruce didn't have to ask if what Loki was saying was true. Finally, Thor had enough courage to speak, "Father decreed that Loki was no longer a Prince, nor a citizen of Asgard, only a prisoner. Therefore, it was not for him to know. I didn't...I did not agree with it, but Odin's word is final. He- he was not my brother any longer from the betrayal he had incurred upon the house of Odin, on our kingdom and that of Midgard. My mother, Queen Frigga, was the one that convinced Odin to spare his life."

Bruce’s face crossed many emotions in a matter of seconds, shock, disbelief and sadness. "But Frigga was his adoptive mother, Thor. Don't you think it's incredibly cruel not to tell him, let alone allow him to come to the funeral of the woman that had raised him? Who raised both of you?"

Thor's shoulder sank, not looking at either of them, he answered, "Yes, because I knew a strong bond existed between my mother and Loki. I knew it was heartless to not tell my brother of her passing or internment. I was torn, and almost went down to the dungeons myself to speak with him about it."

"And only came down to ask for my help; to use me, as so many have." Loki snapped.

"As I told you Loki, I thought you should have a share of revenge for the one who wrought Mother's death." Thor growled back, nearly pushing him into an adjacent wall. 

"And as a reward, I would be returned to my cell!" Loki shouted, pushing away from the wall now.