A Guide to Observing Past Epochs is a wizarding book concerned with time-travel, written in densely theoretical jargon. A copy of the book is kept in the Charmbridge Academy Library, and Alexandra Quick borrowed it in the Fall of 2009.
| Identifier (URI) | Rank |
|---|---|
| dbkwik:resource/Em3jxF13GL0IgkJ7os5NWg== | 5.88129e-14 |