|Appearances|| Last Specter|
|Relations|| Granny Riddleton|
Keats is a cat who you interact with throughout Professor Layton and the Last Specter and Professor Layton and the Azran Legacy. Keats replaces Granny Riddleton in Last Specter, just like Puzzlette replaced her in Professor Layton and the Unwound Future. Keats also appears in Professor Layton and the Azran Legacy, travelling the world with Professor Layton and the others on the Bostonius.
Keats is a purple cat with a red collar and a golden medal with a question mark on it, suggesting a puzzle.
Before Emmy boards the Bostonius with the others, Granny Riddleton appears and requests that she takes care of Keats in her place temporarily, while she took a tour around the world searching for mud baths. Keats stays in the Bostonius for the remainder of the game and keeps any incomplete puzzles.
"Granny Riddleton's dearly beloved cat, Keats is a curious yet clever kitty who is always turning up in the strangest of places. He visits the Fish Research Centre on a daily basis, but he isn't interested in the research!"
"Keats, Granny Riddleton's beloved pet cat, has an uncanny talent for finding and collecting any puzzles Layton and the others leave behind. He is also fluent in many languages, including Sparrow, English and Catalan. Keats settled into the Bostonius in true feline fashion, immediately claiming his own cushion."