Ella and Owen 6: Dragon Spies!

In book 6 of the Ella and Owen series, the twins find themselves caught in a muddy battle between dwarves and elves!The twins find themselves in yet another messy situation when they are mistaken for spies! The dwarves think Ella and Owen are spying on them for the elves, and the elves think the twins are spying on them for the dwarves.Can Ella and Owen convince the elves and the dwarves that they're not spies and finally get home?