A Pocketful of Tears (Dragon series Book Two)

What are dragon's tears? They look like tiny pearls and they are the most precious substance on the face of the earth. What do they do? They make you feel brave when you are stuck in the smelly cave of the bad, black dragon Grendel. But Briony will need more than a pocketful of tears to get her out of this mess. It's a good thing she has her very own dragon to come to the rescue.