The Taxonomy of the Grue

The Taxonomy of the Grue was a book classifying the various kinds of grue in the late 15 century DR.

A copy was in the library of Bradda's Sage's Shop in Neverwinter in 1479 DR.

"Some who wander, but are not lost.... run the greatest risk of being eaten by a Grue..."

- From The Taxonomy of the Grue