Our fiction break (as we continue study of Lewis and Clark) is a novel by Robert C. O'Brien that tells of a strong friendship between a mouse family and a band of intelligent rats. Here is a very good site for study of this book.
Thematically, the story ties in well with the Corps of Discovery as it illuminates the themes of friendship, courage, cooperation, and survival.
Vocabulary
vantage
wisp
relentless
hypochondriac
tedious
roundabout
vigorous
protrude
upholster
hostile
compiled
incur
inkling
plaintive
contention
engross