Diana Pavlac Glyer’s book, "Bandersnatch: C. S. Lewis, J. R. R. Tolkien, and the Creative Collaboration of the Inklings," explores the unique bond between these two literary giants. Glyer notes that Tolkien, in "The Lord of the Rings," imbues the character Treebeard with a deep, resonant sound reminiscent of C. S. Lewis. This choice highlights Tolkien's admiration for Lewis, associating him with Treebeard's wisdom and connection to nature.

This connection reflects Tolkien's longstanding appreciation for trees, which is evident throughout his works. By aligning Lewis with the ancient tree-man, Tolkien not only praises his friend but also emphasizes the natural themes present in their literature. Glyer’s analysis sheds light on the collaborative spirit shared by the Inklings, enriching our understanding of their creative interplay.