Here is a concise summary of the provided transcript:
**Title:** (Implied) "Discovering a Secret in Oak" (likely a vlog/video title)
**Summary:**
* Host Lina, in a location called Oak, suspects her team is hiding something from her.
* She decides to make herself "invisible" to uncover the truth.
* Through her "invisible" investigation, Lina discovers a locked room and overhears conversations suggesting her team wants to "kick her out" of the house.
* However, she eventually uncovers the true surprise: a party planned in her honor.
* To avoid ruining the surprise, Lina decides to pretend she doesn't know and act surprised at the party the next day.
* The video ends with Lina inviting viewers to like and subscribe for more content, teasing the upcoming surprise party reveal.
Here are the key facts extracted from the text, without opinions, in short sentences with numbers:
1. **Video Setting**: The video is recorded in a location known as "Oak".
2. **Host Introduction**: The host's name is Lina.
3. **Initial Plan**: Lina planned to make herself invisible to uncover what her team was hiding from her.
4. **Cancelled Shopping Trip**: Lina had previously cancelled a shopping trip with someone named Laura.
5. **Alternative Plan**: Lina considered learning to swim at a municipal pool, but decided against it since she has a pool at home.
6. **Objective**: Lina wants to uncover what her team is discussing in secret.
7. **Method**: Lina decides to pretend to be asleep to gather information.
8. **Discovery**: Lina discovers a locked room in the house, which piques her interest.
9. **Team's Secret**: The team is planning a surprise party for Lina.
10. **Party Details**: The party is scheduled for the next day, and the team is excited about it.
11. **Lina's Decision**: Lina decides to pretend she doesn't know about the party to avoid spoiling the surprise.
12. **Video Conclusion**: Lina invites viewers to like the video and subscribe to her channel and the team's channels.