|aCapital mysteries 5 : Who broke Lincoln's thumb? /|cby Ron Roy ; illustrated by Timothy Bush.
|aWho broke Lincoln's thumb?
|aNew York :|bRandom House,|c2010.
|a86 p. :|bill. ;|c20 cm.
|aCapital mysteries ;|v5
|a"A Stepping Stone Book."
|aWhen they discover that one of the thumbs has been broken off the statue in the Lincoln Memorial, KC and Marshall set out to learn what happened and restore the thumb before a ceremony honoring the sculptor.