The Grim Grotto

Published in 2004, The Grim Grotto is a children's fiction novel by Lemony Snicket. The eleventh book in the A Series of Unfortunate Events, the story follows the three Baudelaire siblings (Violet, Klaus, and Sunny) as they search for the elusive sugar bowl but uncover a deadly poisonous mushroom instead. A Series of Unfortunate Events is a literary phenomenon that has been printed in forty-one different languages and sold more than 65 million copies. Lemony Snicket is the pen name of American author Daniel Handler, who has also penned several novels and screenplays for adults.

At the conclusion of A Slippery Slope (the series' tenth book), the Baudelaire siblings have escaped from Count Olaf in a toboggan after being separated from Quigley Quagmire. They drift along the river until suddenly, a submarine rises out of the water, lifting the toboggan with it. The hatch opens, and a voice asks the Baudelaires if they are friend or foe. Violet replies that they are friends, so the voice asks for the password. Taking a guess, Violet answers with the V.F.D. motto: "The world is quiet here." The siblings are then welcomed aboard the submarine (named the Queequeg) by Captain Widdershins, his stepdaughter, Fiona, and Phil, whom the Baudelaires met in Lucky Smells Lumbermill. Phil now acts as the submarine's cook.

Captain Widdershins reveals that they are looking for the lost sugar bowl, which is said to contain a secret that will save the world. With only a week before the big V.F.D. meeting at the Hotel Denouement, it is imperative that they find it. Studying tidal charts, Klaus determines that the sugar bowl has likely been swept along the current and come to rest at a place called the Gregorian Grotto. Fiona, an expert mycologist, reveals that the Gregorian Grotto is home to the Medusoid Mycelium, a poisonous mushroom that releases deadly spores into the air in waxing and waning cycles.

Before they can pursue the sugar bowl, a giant submarine shaped like an octopus appears. Through the window, the Baudelaires can see Count Olaf at the octopus sub's helm, so they shut off all power to the Queequeg, hoping the octopus sub will pass them unawares. Just when it seems the plan will fail, the octopus flees from something that only shows as a question mark on the radar. When questioned what the object is, Captain Widdershins will only reply that it is "something even worse than Olaf himself."

Over dinner, Fiona mentions that she has a missing brother named Fernald. She also asks Violet and Klaus about the mysterious message from J.S. that has called all V.F.D. members to the meeting at Hotel Denouement. Captain Widdershins doubts that it is from Jacques Snicket, who the Baudelaires saw murdered in the Village of Fowl Devotees. He also mentions Jacques' sister, Kit, and another Snicket sibling whom he does not name. When asked about the contents of the sugar bowl, Captain Widdershins stubbornly refuses to share anything.

The next day, the Queequeg arrives at the Gregorian Grotto, an undersea cave, and Violet, Klaus, Sunny, and Fiona don diving suits to search for the sugar bowl. Once inside, they emerge into an area without water. Just as they arrive, the Medusoid Mycelium waxes, sending the children fleeing into the far corner where they have no choice but to sit and wait for the mushroom to wane again. They pass the time by investigating the books and other objects in the cave. They learn that someone named Gregor Anwhistle was going to use the Medusoid Mycelium to poison V.F.D. enemies, but that the spores escaped, poisoning the entire aquatics lab.

When the mushrooms wane, the children return to the Queequeg, having not found the sugar bowl. When they arrive, Captain Widdershins and Phil are missing. Worse still, they discover one of the spores has infiltrated Sunny's helmet. She will die within an hour if they cannot find a cure. Just then, the octopus sub returns, trapping the Queequeg in its jaw. Count Olaf comes aboard and takes them prisoner.

Inside the octopus sub, Count Olaf is using kidnapped children to power the sub by rowing to control the sub's octopus arms. Fiona shocks everyone when she sees the Hook-Handed Man and addresses him as Fernald. The pair is overjoyed to see one another. Violet reveals what she learned in the Grotto: that Fernald burned down the aquatics lab. Fernald admits to it, saying that the action cost him his hands, but that he did a bad thing for a good reason. He says that no one is all good or all bad, even Count Olaf. Klaus realizes that while half of V.F.D. was putting out fires, the other half was starting them.

Violet and Klaus beg to return to the Queequeg to search for a cure for Sunny, and Fernald agrees to help them if they will take him along. As they try to escape, however, they are spotted by Esmé. Fiona and Fernald create a distraction, allowing the Baudelaires to slip away. Back on the Queequeg, Sunny is near death as Violet and Klaus frantically research for a cure. They learn that the poison can be stopped by horseradish, but there is none on board. Sunny gasps the word, "Wasabi." Violet and Klaus give her some wasabi, and she is saved.

Count Olaf returns to the Queequeg and finds them. He takes the remaining spores (safely sealed in Sunny's diving helmet) to use in his nefarious deeds. Fiona will not leave Fernald, but she helps the Baudelaires to flee to the escape pods. Violet has deciphered a coded message that reveals a taxi will be waiting for them at Briny Beach, the place where their troubles began. Sure enough, when they arrive, they find a taxi, and Kit Snicket emerges to greet them. The story continues in the twelfth book, The Penultimate Peril.