Kermit's Mixedup Valentines - All Aboard Reading: Level 1 Author:Emily Sollinger Roses are red, violets are blue, what's a mixed-up frog to do? It's Valentine's Day and Kermit's mailbox is full. But none of his friends signed their cards! Help Kermit figure out which Muppet sent each of the silly riddles, rhymes, and love poems that he's received.