The Dandy Lion Inn was a visitor trap disguised as a bed and breakfast hotel. It was run by cannibalistic horned bullfrogs. After the Plantar family's escape, it was demolished by a chemical explosion created by Anne.
Background[]
In "A Night at the Inn", during a trip with Anne, the Plantar family's snail Bessie stops moving suddenly near the location of the Inn, leading the Plantars to stay there, as their tent is destroyed by a struck of lightning shortly after it begins to rain. They are welcomed with kindness and hospitality and are offered cookies and even their own rooms. Later on, it is revealed that the hosts had other intentions, and as Polly's family members began to disappear, it's revealed that they were preparing to eat them, as they had done to many travelers before them.
Polly manages to tip a cauldron and causes the bullfrogs to slip and fall, and frees the rest of the family. They leave the inn and discover the other snails belonging to the various travelers who had stayed in the inn formerly, along with Bessie, who had been affected by a trap placed by the horned bullfrogs. The Plantars manage to free the snails while Anne tips over two storage containers containing vinegar and baking soda.
They escape just as the inn explodes due to a chemical reaction, and free all the other snails that had been captured.