Okay, here is a plot summary of the story "Heidi" (often referred to as "Heidi and Grandpa" in English-speaking contexts) in English:
Heidi and Grandpa Plot Summary
The story centers around Heidi, a young, cheerful, and loving girl from the Alps. Her mother dies when she is very young, and Heidi is sent to live with her strict but well-meaning Aunt Clara in Frankfurt, Germany. Aunt Clara manages a bakery and is often busy with her work and caring for a disabled young man named Klebs, who is confined to his bed.
In Frankfurt, Heidi feels lonely and out of place. Her situation changes dramatically when she is sent to the high mountains of Switzerland to live with her grandfather, a reclusive and initially gruff old man who lives alone in a remote cottage with a large garden. Heidi finds her grandfather difficult at first, as he is grumpy and doesn't want company. However, Heidi's innocent nature, kindness, and love for nature slowly win him over.
Heidi quickly adapts to the mountain life. She loves exploring the beautiful alpine landscape, playing with animals like her goat Peter, and helping her grandfather in the garden. The contrast between her previous life in the city and this peaceful mountain existence is significant.
Meanwhile, in Frankfurt, Aunt Clara learns that Klebs has developed a cough that doctors fear could become serious in the city's polluted air. She decides to bring Klebs to the mountains to recover. Klebs is initially frightened and unhappy about moving to such a wild place, but Heidi befriends him immediately. Her cheerful presence and the fresh mountain air have a remarkable effect on Klebs. He begins to regain his strength, leave his bed more often, and even start to walk, thanks largely to Heidi's encouragement and the beauty of the mountains she shares with him.
Heidi misses her friends, especially a little girl named Clara, in Frankfurt, and she also becomes homesick for her grandfather. Eventually, Aunt Clara arranges for Heidi to return to Frankfurt to visit Klebs. Heidi is excited but sad to leave her grandfather and the mountains.
In Frankfurt, Heidi and Klebs form a strong bond. Heidi brings the joy of the mountains into Klebs's life, and Klebs, in turn, brings Heidi a sense of belonging in the city. During her visits, Heidi also rekindles her friendship with Clara.
The story concludes with Heidi being allowed to spend more time in the mountains during the summer, visiting her grandfather frequently and continuing to bring happiness to Klebs in Frankfurt. The narrative emphasizes themes of love, friendship, nature, and the healing power of kindness and simplicity.