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The Adventurers and the Enigma of the Lagoon follows four friends as they head to Óbidos Lagoon in Portugal for a camping trip, who end up on a suspenseful journey to unravel a series of suspicious incidents surrounding a historical legend. What was the inspiration for the setup of your story?
The plot for this book was already in my mind. The ADVENTURERS would camp in three lagoons in central Portugal and then one of them would be kidnapped during the night and taken to Leiria Castle. However, when I arrived at Óbidos Lagoon, as I always go to the places where the stories will take place, I was surprised by those noises in the lagoon, I heard the story of the underwater people and the plot changed completely. I had to forget all about the previous one and leave it for the next volume, the 5th (The Adventurers in the Lost Labyrinth), and create a different one. So, this adventure took place entirely in the charming little town of Óbidos and its lagoon, the largest freshwater and saltwater lagoon in Europe.
What scene in the book did you have the most fun writing?
I always have a lot of fun during the entire process of writing these books, living with the characters, but I laughed a lot writing the scene in which Tony hits the bandit Margarido on the head with a bucket and puts a fish in his mouth so he won’t scream for help.
Did you find anything in your research of this story that surprised you?
During the research for this book, I was really surprised by the legend of the underwater people from the Óbidos Lagoon. As soon as I heard it, I had to include it in the plot.
What is the next book that you are working on and when will it be available?
The ADVENTURERS have many adventures ahead of them, travelling from north to south across the country, always with exciting adventures, thrilling plots, and a touch of history, as Portugal has a very rich history, in events and characters. It is the oldest nation in Europe to have defined borders. There are currently 16 volumes in the series. The next one is set on Berlengas Island, and its plot is linked to the legend of the treasure of a pirate, Captain Kidd.
Author Links: GoodReads | Isabel Ricardo | Facebook | SerieOsAventureiros | Website | Amazon
Then something happens in the dead of night: footsteps wandering nearby, strange sounds in the lagoon whose origin no one can trace, and a mysterious sight. Do these events have to do with “shrews”, underwater men, a local legend? Determined not to be intimidated, THE ADVENTURERS devise an audacious plan to unravel the suspicious incidents they witness. What strange mystery does Óbidos Lagoon hide?
Volume one and two in the ADVENTURERS series, The Adventurers and the Treasure Cave and The Adventurers and the Underground River, are Literary Titan Book Award winners – Four Stars/ Silver Award.
The Adventurers and the Enigma of the Lagoon
This book is a delightful mix of mystery, history, and good old-fashioned adventure. It follows four kids, Bea, Chris, Tony, and Daniel, plus Jack, a talkative, mischief-loving crow, as they head to Óbidos Lagoon in Portugal for a camping trip. What begins as a fun getaway quickly morphs into a suspenseful journey involving odd nighttime conversations, historical legends, sneaky strangers, and a whole lot of curiosity. With its blend of real locations, local folklore, and fast-paced action, The Adventurers and the Enigma of the Lagoon feels both grounded and fantastical.
What really pulled me in was the charm of the characters, especially Jack the crow. His goofy lines like “Shoo, pests! Shoo!” and “Well, whaddya know?” gave the story so much life. The dynamic between the kids was warm and familiar, with snarky sibling comments, inside jokes, and all the awkward chaos of real friendships. One of my favorite early moments is when Jack mimics the train whistle and causes such a ruckus that passengers switch train cars. That’s the kind of energy this book carries, playful and slightly unhinged in the best way.
I also appreciated how rooted the story is in the setting. The descriptions of Óbidos are just beautiful, like when Bea exclaims, “I’ll come and live here one day! I’m in love!” I shared the same sentiment. The castle, the winding streets, the lagoon, it all feels vivid and alive. Plus, the historical facts sprinkled throughout (like the tale of Afonso Henriques and the Traitor’s Gate) are fascinating without ever being dry. It’s clear the author knows and loves this place deeply. That passion is contagious.
The mystery itself, while not wildly complex, is satisfying. There are shady adults, missing items, whispers in the night, and even a bit of environmental commentary on lagoon pollution. I wouldn’t say it had me on the edge of my seat, but I was definitely eager to find out what the deal was with Margarido and the weird noises at night. It’s a mystery more about atmosphere and tension than plot twists, which works for a younger or middle-grade audience.
The Adventurers and the Enigma of the Lagoon is fun and wholesome without being boring, adventurous without being reckless, and smart without being preachy. If you like The Famous Five or Nancy Drew, but with a European twist and a slightly more magical bird, this is right up your alley. I’d recommend it to kids around 9–13, families reading together, or anyone who enjoys lighthearted adventures in charming places.
Pages: 181 | ISBN : 1962185478
LITERARY TITAN 