Based on the provided criteria, here's my assessment of the story's Tragedy Degree and Comedy Degree:

- **Tragedy Degree: 4**
  
  The story contains some elements of sacrifice and loss, glimpses of the past battles, and unsung heroes which can create emotional depth. However, it doesn't delve deeply into the tragic aspects, as the focus is more on discovery and purpose.

- **Comedy Degree: 3**
  
  The story is primarily adventurous and inspirational rather than comedic. It has a light-hearted tone due to Leo's excitement and sense of wonder but lacks strong comedic elements or humor.

Here are the ratings in the specified JSON format:

```json
{
  "TragedyDegree": 4,
  "ComedyDegree": 3
}
```
