Billy Johnson and his Duck are Explorers #3
Billy and Barrace travel to the deserts of Oman, tracking the long extinct Atlas bear. Two problems though: it's not an Atlas bear, and they're not the only ones after it!
Also features back-up comics and illustrations by Jennifer Lisa (Garretsville), Amelia Onorato (Rockall), Alex Bullett (Goblins Goblins), Jessi Zabarsky (Witchlight), and Joey Weiser (Mermin)!
International shipping is super expensive and I apologize! You can by a .PDF version of the comic here: https://gumroad.com/mathewnew