One thing I really appreciated about this book was how well Hergé handled suspense. There’s a sense of urgency throughout, with chase scenes, clever disguises, and unexpected twists. Captain Haddock is in top form here—his grumpy, whiskey-fueled reactions are always hilarious, especially when dealing with all the chaos around him. And of course, the Thompsons provide their usual slapstick moments.

From the detailed illustrations of the rocket's construction to the clever depiction of espionage attempts, every panel brims with meticulous research and Hergé’s signature humor. It’s a gripping blend of intrigue and innovation as the team faces sabotage, mistrust, and plenty of Haddock's grumbling—thankfully punctuated by his colorful vocabulary!

Reading "Underground Kingdom" with my kids was a delightful experience; it was their first foray into the "Choose Your Own Adventure" books, and it couldn't have been more enchanting. The choices are engaging, the stakes are high, and the adventures are limitless, providing a fantastic bonding activity that sparked their imaginations and introduced them to the joy of interactive storytelling.

Inside, you'll find an array of Aiken’s artworks that blend narrative and visual artistry. The paintings depict the Raimbillis engaging in daily activities, festivities, and the simple joys of life. The narratives accompany the paintings, adding context and giving readers a glimpse into the story behind each piece. These stories of music-filled gatherings, playful pranks, and communal living evoke a nostalgic charm and a connection to a simpler, joyful world.