Omg I love that book...
Max keeps growing and growing and growing. Grim thinks it's from carrying "poor Kevin around." But Max tells him he's not that heavy.
That might be it
Most likely, it's the word "pajama"
Hope this answer helps
Writers of the Romantic period were concerned with C. describing the beauty of nature and how individuals interact with it.
It is wrong to assume that Romanticism has anything to do with love and romantic feelings only based on the name of this era. As a matter of fact, nature and individualism were far more important motifs than love.