Mr Penguin Books in Order

Mr Penguin is an adventurer. He has a smart hat, a battered satchel, a packed lunch of fish finger sandwiches, and a deep wish for a real case to come through. He also has Colin, a quiet but formidable spider who knows kung fu and is usually more capable than he lets on.

The first book, Mr Penguin and the Lost Treasure, sends the pair to the Museum of Extraordinary Objects after its owner asks for help finding a hidden treasure. What sounds like a straightforward search soon leads through clues, secret passages, strange exhibits, and danger beneath the museum. It is the right introduction to Mr Penguin’s particular kind of detective work, equal parts bravery, confusion, snacks, and luck.

The series mixes mystery with broad adventure. Each case drops Mr Penguin and his friends into a new setting, from a snow-covered fortress to a luxury cruise ship and a desert town near ancient tombs. The settings matter because they create the puzzles. Locked rooms, strange messages, missing pets, threatening notes, cursed treasure, and shadowy figures all give the gang something to untangle.

Mr Penguin is enthusiastic rather than polished. He can be nervous, he worries about flying and water, and he is easily distracted by the prospect of a fish finger sandwich. But when a friend needs help, he keeps going. Colin is his steady partner, while recurring allies such as Edith Hedge bring more practical skills and a little extra chaos to the team.

The tone is lively and silly without losing the stakes. Villains make outlandish plans, clues build toward a reveal, and every dangerous moment has room for a visual gag. Smith’s black-and-orange illustrations are woven into the storytelling, often adding expressions, hidden details, and jokes that are not stated in the text.

These are mysteries with plenty of running, falling, decoding, and sandwich breaks.

The books work best in order because the core gang grows from one adventure to the next, though each case has its own beginning, puzzle, and setting. Start with Mr Penguin and the Lost Treasure, then continue to Mr. Penguin and the Fortress of Secrets, Mr Penguin and the Catastrophic Cruise, and Mr Penguin and the Tomb of Doom.

Readers who enjoy detective stories but do not want anything too grim will find a lot to like here. The cases are exciting, the jokes are frequent, and Mr Penguin proves that you do not need to be fearless to go on an adventure. You just need a good friend, a useful hat, and maybe lunch.