I'm sorry for all mistakes I make. I'm from Germany and would be happy if you tell me my mistakes

1.

Hall of Heros

It was a normal day at the Jade Palace. Po was studying the scrolls while the Furious Five were training. "Hmm... That sounds interesting" Po mumbled "With this spell you can turn anyone in a physically younger version of himself."

Quietly the door opened when Po read the spell out loud. He didn't hear the steps behind him which were getting faster with every second. "Po!" he heard the voice of a little girl shouting. When he turned around there stood a little tiger cub. Not older than four years.

The cub wore black pants and a red vest. With a confused look Po stared at the child "Hey, where do you come from? Little kids shouldn't play here" the Dragon Warrior as he lifted up the tiger and carried her to the door. "H-hey! I can walk by myself! Put me down! Po!" the cub shouted and kicked the panda in the stomach. "One moment! I know that kick! Tigress?" the big warrior was very confused "I did it! I just did the thing from the scroll! That's so awesome!"

"What did you do?" little Tigress asked and Po handed her the scroll. "I wonder how you're going to explain this to master Shifu." Po freezed in his move. He didn't even wanted to think about the punishment his master would give him. He couldn't even, because just two seconds later the red panda walked in.

"Po, I have to- What did you do?" Shifu hurried to the warriors in front of him and took the scroll from Tigress. She was now smaller than him, what Po thought was really funny. The grand master sighed "You are really lucky this time, panda! There is an antidote to this, but the scroll for it is in the archives. You will search it. But before you go, I have an announcement for all of you. Tigress, go and get the rest of the five, Po I have to talk to you privatly." Shifu explained. Tigress and Po bowed. Tigress got on all fours and ran out of the hall.