She started to run but the Other broke the window and catch her his grip was tight and she couldn't escape. The Other hit her in her head and she fainted.

Loki and Thor were now in the Avengers tower. Loki felt a sharp pain in his head. Someone of his beloveds wasn't safe…Eilidh. "Brother, the Other have Eilidh she is alive I can feel it but I don't know for how long." Loki told Thor. He worried about her. "Let's tell this to the others they will help us find her." Thor reassured him. "So beat it, brother. But hurry up." Loki replied. They ran to find the Avengers. They were here "We know about her, Loki." Bruce said. "But how?" Loki asked. "Because they sent us this video" he replied and he pushed the Play button. In the video was Eilidh, her head was bleeding she had just woke up. The Other appeared in the camera. He held Eilidh's neck and said "Hello, Asgerdian. We have your princess. And she will be safe when you come here. To meet me and my boss Thanos." He put a paper in the camera an address was written there:
Walldown, 154
Come here at midnight

And bring and your friends together.
Everybody was speechless. Till Loki spoke "We have to go there to save her. Let me be an Avenger, too. We must help her, to save her." "Loki calm down please and of course you are one of us now. We will help you to save her." Nat said as calmly as she could. "We have to prepare ourselves. About this battle." Tony replied. Everyone agreed. And they started preparing.

Until the night came they left from the tower and they gone to the right address all of them were anxious. Finally! Midnight! The Other and Thanos appeared with Eilidh bounded. Loki pained with this sight. Thanos spoke "We made an agreement but you failed. You regretted it. You join to the Avengers now it's time for you to feel the real pain." "Did you finished?" Tony asked. Thanos didn't speak. "Ok, then. ATTACK!" The Avengers started to kill the Chitauri after few minutes none of them left. "Now, your turn!" Captain America told the Other and Thanos. They were fighting for an hour and half till all the Avengers except Loki was down unable to continue the battle. Thanos approached Loki. He looked him deep in his green shiny eyes. "It's time Asgardian." he said.