Loki huffed as he sat down on the bed. His 'trial' (basically just Odin making his displeasure known) ended ten minutes ago and then they took him to his new accomodation, i.e. a cell.
He huffed again. His not-father seemed pretty angry. Loki was quite sure that Odin had not been so furious due to Loki's attacking a realm, but because the said attack took place without his order or assent. He was also quite certain that the rest of Asgard was upset with their second prince not only because of that, but also because he didn't manage to conquer the realm in question - despite having a large army.
What a mess!
First he found out he was adopted - and that was him being generous with the term: more like stolen - and thus the possibility of him getting the throne was about the same as Thor giving up Mjolnir. Namely: non-existent. As if there was a chance in Hel that Asgard would want a frost giant's ass warming up the throne (the whole golden son being preferable aside). Ridiculous!
Then he somehow ended up in the void and in the hands of a giant purple grape (the grape called himself Tennis or something like that) and was given an opportunity to get his own realm. But noooo. His not-brother simply had to show up and help those mortals defeat him and his army. HIS army! Dammit why Thor did not let him have nice things?! That oaf always stole from his plate, hogged the blanket when they shared it on quests, regularly borrowed his hairbrush when losing his own and now he took away his army! Stupid Thor.
Loki was sure he would be an excellent overlord. He could just picture himself: laying on a sofa in the shade of his gigantic golden statue, eating grapes and watching a heroic play of his triumph. It would be perfect. But Thor and those stupid new friends of his (green beast, mewling quim, not-a-bad-minion, too-old-virgin and cannot-shut-his-mouth) had to ruin it. Insipid little cretins.
He should take revenge on them. Not kill them, because that did not sound like a proper God-of-Mischief-revenge, more like… Thor-revenge. Decidedly not. They were going to feel his wrath and weep! But he should be probably quick about it, their weak species grew old so quickly that they might have already died before he finished this thought.
And he should also conquer Midgard while he's there. To show that he could.
Satisfied with his plans Loki nodded and took the first look around his cell. He was not impressed.
It was probably time to leave, he must have been in this cell and least fifteen minutes. Hopefully they will consider it enough of redeeming time when they find him gone.
Loki closely examined the magic around the glass and decided that the easiest solution was to use his Jotunn powers. That's right, Jotunn powers. He still was not on the moon about his ancestry, but Tennis had a lot coloured children that scoffed at Loki for not wanting to be blue (Nebula threw a mace at him) and not learning about powers that could help him kill better. Tennis must have been a weird dad based on his kids' issues.
By freezing the magic conductors powering the cell he temporarily disabled the spell on the glass and walked through it. Then he illusioned himself as a guard and walked towards the kitchen. There he stole a lot of food prepared to the feast celebrating Thor's return (and also all of Odin's favorite desserts) and magicked the rest of the food to taste like cooked cabbage (not-a-bad-minion introduced him to this flavour during their shared time and Loki immediately decided that the flavour is perfect for revenge purposes).
After causing some further Mischief (spelling all shampoo stock in the castle to turn hair pink, throwing Odin's eye-patches in the void and shrinking all Thor's left shoes one size smaller) he left for Midgard.