Here is a concise summary of the provided text:
**Title:** Prank on Ex-Roommate Caspar Lee
**Prank Setup:**
* The prankster hides Caspar's prized possessions (wallet, phone, etc.) in a locked box.
* A fake key is hidden in one of multiple ice cream tubs in the freezer.
* A real key is secretly kept, while the fake one is meant to mislead Caspar.
* A riddle hints at the key's location, mentioning the "coolest thing in your flat" (the freezer).
**Prank Execution:**
* Caspar discovers the hidden box and riddle, leading him to search the freezer for the key.
* Despite initial failures, Caspar eventually finds the fake key in an ice cream tub.
* After more searching, the prankster eventually reveals the location of the real key (in a cookie dough ice cream flavor).
* Caspar finally retrieves his possessions.
**Conclusion:**
* The prankster reflects on the prank's success and invites viewers to like, subscribe, and look forward to the next video (a "Sub Sunday special").
Here are the extracted key facts in short sentences, numbered for reference:
1. **Prank setup**: A prank is set up to trick Caspar Lee, the ex-roommate of the narrator, Hockman.
2. **Target's new habit**: Caspar Lee has recently become very into his fitness regime, achieving an Olympian-like physique.
3. **Hidden items**: Caspar's prized possessions (wallet, phone, and others) are hidden by Hockman with the help of Josh and Grant.
4. **Locked box and fake key**: Items are hidden in a locked box; a fake key is provided to mislead Caspar.
5. **Fake key's hiding spot**: The fake key is hidden in a tub of ice cream in the freezer.
6. **Multiple ice cream tubs**: Several ice cream tubs are used to make finding the key more challenging.
7. **Riddle to find the key**: A riddle is left to help (or mislead) Caspar in finding the key.
8. **Riddle's solution**: The key is actually hidden in a cookie dough flavor ice cream tub.
9. **Prank duration**: The prank lasts for about an hour before the key is found.
10. **Prank resolution**: The key is eventually found by Grant, resolving the prank.
11. **Post-prank outcome**: The narrator ends up dusty and the prank concludes with an evaluation of its success.
12. **Video publication**: The prank is recorded and published as a video, with links to participants in the description.