Finding the lost teammates.

"Leave him alone. You have your revenge against me. Not him." I pleaded to Nemesis as some moment ago a blue ghost the servant of Nemesis brought Leo in the ice chamber where Nemesis had already trapped me. Now she was throwing Leo in the ice chamber, Leo couldn't bare it at any point. It was ice everywhere, my hands and feet were tied to wall with ice due to which I couldn't move and inch. The ice was freezing my back. The blood had frozen in my body already making me numb. I didn't know what would be Leo's condition.
The cave was completely filled with blue sparkling ice. Long, sharp spikes were hanging down the roof, they were deadly as my morbid blade, which laid somewhere in the snow.
"There would no fun killing you easy and you alone. Darling." Nemesis said giving her usual evil grin.
"Leave us alone. You wan't your revenge right. Get it. Kill me. Whatever you want let others go." I said trying to break the ice lock on my hands.
"Before dying won't you know why I have the urge to kill you and have my revenge?"
"I have no interest in that. Old lady."
"You have grown rebellious haven't you? It really wont be fun without telling you the tragedy." She said blowing air in her nails. "From centuries a sacred ritual has been passed down the blood. Where on the night of double moon on the planet of Mesem which comes once in 300 years. One of us drinks the blood of her grand daughter and becomes immortal."
"What does it have to do with me?" I said still trying to get my hands free.
"How impatient are you? You are really annoying me now." She said screeching her nails on ice. I couldn't even close my ears. "Well let me continue then. My mother was killed following the ritual. My great grand mother performed the ritual and lived her beautiful immortal life. Then after 300 years it was my turn for the ritual in which you should have been the offering but the last moment your parents disappeared trying to save you."
"So what will you get after killing me?" I was trying to get some time till others reached. There would have been no way others could find me plus Leo might already be half dead in the ice chamber. I couldn't see him due to the thick ice but I wished he would be alive.
Nemesis got up her throne and walked towards me. She drew a long ice knife with a gold hilt from an ice spike. She held the ice spike near my neck.
"Darling. I will need your body for the ceremony. I will kill you right now and preserve your body till the extra double moon night."
"Extra double moon night?" I said giving a confused look.
"Your knowledge about the stars is weak isn't it? Its the extra night when you really don't have to wait for 300 years for the night of double moon and you know what the night comes tonight." My eyes widened up. I knew that I had very little time to save myself and Leo who was still freezing in the ice chamber." I can't wait for the moment when I will drink your blood and become immortal." She vent out a long evil laugh.
She bought the knife close to my neck. I could feel her blade digging in my neck.
Suddenly a loud blast shook the cave. A large hole appeared on the other side of the cave. Root. Others were there too. Tears filled up my eyes. They came at last. Nemesis turned around. "You are gone old lady." She hissed at me and then turned around attacking Root head on. Nemesis was no weak she knocked out Root and Mallory in one shot knocking them in different corners of the cave. Harry came towards me dodging Nemesis's attack.
"Save Leo first, he is in that chamber." I shouted at Harry. Leo needed to be out of the cave first.
Harry removed a grenade out of his pocket and threw it at the ice chamber. A loud blast rang the cave again. I could see Leo in the cave. He was on the ground panting heavily. He was still able to lit his fist barely keeping him warm. Harry dragged him out of the cave and then came running towards me.
"How did you all find me?" I asked him.
"Later." Harry answered breaking the ice that held my hands and the fist with his sword hilt. "Now carefully listen to me. You are the only one who can get us past her. She is already a powerful god and it will be humanly impossible for us to kill her. She is just to powerful for us."
"Then how can we fight here?" I asked in confusion.
"Only you can discover it." He answered before he ran away attacking Nemesis.
Only you can discover it but what is it.