Based on your criteria, the story has been evaluated for its Tragedy Degree and Comedy Degree. Here is the JSON output with the scores:

```json
{
  "TragedyDegree": 2,
  "ComedyDegree": 4
}
```

**Explanation:**

1. **Tragedy Degree (2):** The story contains very few tragic elements. While there is a moment of tension with Vincent Legrand's attempt to steal the skull, it is quickly resolved with no significant emotional setbacks or profound tragedy. Hence, it scores low on the Tragedy Degree.

2. **Comedy Degree (4):** The story has some light-hearted and positive elements, such as the unity and resilience of the academic community, and the thwarting of Legrand’s theft. However, it doesn't have strong comedic aspects or an extremely happy ending. Thus, it leans slightly towards a light-hearted adventure but doesn't qualify as predominantly comedic.
