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Percy's POV

I woke up suddenly, but couldn't open my eyes. So, instead of logically just choosing to sit there and open my eyes slowly, I jumped out of the bed I was in and started punching wildly. I was disoriented, so instinctively went into fight mode. I heard a yelp of surprise as my fist connected with soft flesh, I then got knocked to the ground. I slowly pried my eyes my open and blinked a couple of times. I found myself looking at a familiar blinding white ceiling. The medical bay. I saw everyone but Thor surrounding me, and Tony was massaging his cheek.
"Sorry," I muttered. My heart was pounding. Tony mumbled a response that I couldn't hear, but Clint burst out laughing and Natasha smacked his arm and gave him a disapproving look. Cline has had past experience to at least look a little sorry. Steve knelt and held out a hand. I grabbed it and he pulled me up. That was a mistake. I grimaced in pain and dizzily looked looked at my chest, which was the center of the pain. Crimson was blooming like a deadly rose in the middle of my sternum. I wondered how I got injured, then all of the terrible memories came rushing back. That same spot was where hestabbed me. Steve took one look at my chest, got a grim look on his face, and rushed out of the room.
"I'll be back," he shouted over his shoulder as he started running faster than I thought was humanly possible down the narrow hallway. Bruce had a panicked look on his face. He pulled off my shirt and assessed the damage. What he found was not what he was hoping for. I had a deep gash going all the way from my right shoulder down to my left hip. I was bleeding out, even I could tell.
"You can't fix this," I said weakly, but calmly. If this was the end, so be it.
"Yes, I can," Bruce said firmly and worked feverishly trying to stop the bleeding.
"It's ok. It's not your...fault," I whispered before my started going dark. The last thing I saw was the team, staring down at me. They all had a mixture of horrified and shocked looks on their faces. Then, there was nothing.

Steve's POV

"Thor? THOR!" I yelled down the hallway. Percy was in bad shape, and we were running out of time. I rounded a corner, and saw him at the end of the new hallway.
"Thor! Thank goodness. I've been through this entire tower looking for you!" I said, panting.
"What is wrong, Steve?" Thor asked.
"It's Percy. He's back," I said grimly.
Thor got a really concerned look on his face and raced towards the medical bay.

Still Steve's POV

We wasted no time getting back. As soon as Thor saw Percy, he started cursing in another language... Norse, probably.
I looked at Bruce, who looked grief stricken. He looked at me, and shook his head.
"Thor! Do something!" I yelled, getting into leader mode.
"I'm trying!" He said, panicking.
"Thor, it's ok, we all believe in you. Percy does too. You can do this," Natasha soothed. Everyone except for Thor, Clint, and I looked at Natasha incredulously. They have never seen her act like this. Thor hasn't either, but he was kind of preoccupied at the moment, trying to save Percy and all.
"I cannot do anything, this is ancient magic cast by a very powerful being," Thor said.
"Do you know who it is?" Tony asked.
"Yes, it is Tartarus," Thor said grimly. But it didn't matter. We were too late.