Here is one bit of description:
In these books, the young German protagonist, Wilhelm Heinrich Sebastian Von Troomp, better known as Baron Trump, travels around and under the globe with his dog Bulger, meeting residents of as-of-yet undiscovered lands before arriving back home at Castle Trump. Trump is precocious, restless, and prone to get in trouble, with a brain so big that his head has grown to twice the normal size—a fact that, as we have seen, he mentions often. No one tells Trump that his belief that he looks great in traditional Chinese garb—his uniform for both volumes—is unwarranted.
Lockwood’s books are spring break meets Carmen Sandiego meets Jabberwocky; at the start of each story, Trump sets out eager to find new civilizations—and manages to get distracted by more than one lady along the way. One of the first places he visits in Travels and Adventures is the land of the toothless and nearly weightless Wind Eaters, who inflate to beach-ball size after a meal. They are generous hosts until Trump starts a fire. The intrigued Wind Eaters draw near, and promptly explode after the air they have ingested expands thanks to the flames. As Captain Go-Whizz, “a sort of leader among them,” chases the murderer, the dog Bulger bites one of the Wind Eaters until he deflates like a punctured balloon. The pair eventually escape, leaving the briefly betrothed Princess Pouf-fah without a mate, and Chief Ztwish-Ztwish and Queen Phew-yoo with many a funeral to plan.
Here is the full story.