A possible summary is:
The speaker is looking for his friends Beto and Davi, who have disappeared. He decides to blow up an abandoned house near his castle, where he finds a secret passage to a sewer. He rescues Davi from a cage, but Beto is still missing. They face many monsters and challenges in the sewer, until they find Beto trapped by a clown. They free him and escape, planning to blow up the whole place. They also answer some trivia questions about Minecraft along the way.
Here are the key facts extracted from the text:
1. Beto and Rei Davi have disappeared and the narrator is looking for them.
2. The narrator decides to blow up an abandoned house near their castle and discovers a secret passage underneath it.
3. The narrator finds Rei Davi trapped in a cage and rescues him with dynamite.
4. The narrator and Rei Davi encounter many monsters and challenges in the secret passage and try to escape.
5. The narrator and Rei Davi find Beto in another cage and free him with a lever.
6. The narrator, Rei Davi and Beto plan to blow up the secret passage and the abandoned house.