A review by anthropologue
The Basque Dragon by Hatem Aly, Adam Gidwitz, Christopher Smith, Jesse Casey

4.0

The Unicorn Rescue Society picks up right where they left off - Elliot's second day of school sees a surprising package on his doorstep, containing a book on the history of the Basque region. Next thing Elliot and Uchenna know, they're flying across the Atlantic in Professor Fauna's dilapidated airplane, to rescue a dragon.
Adventure, Danger, and Dragons lurk in this second fantastic romp from Adam Gidwitz. I really loved the introduction to the Basque history and culture that sneaked into this adventure.