Every season of Layton Mystery Detective Agency: Kat's Mystery‑Solving Files ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of Layton Mystery Detective Agency: Kat's Mystery‑Solving Files!

Katrielle and the Mysterious House

Katrielle and the Devil's Dress

Katrielle and the Resurrected Corpses

Katrielle and the Phantom Thief of the Century

Katrielle and the Lucky Man

The Bus that Leapt Through Time

Ratman Returns

The 100 Million Pounds that Left with the Wind

Cat-Colored Skyscrapers

Professor Layton and the Relics Treasure: Episode 1

Mystery at New Cinema Paradise

Aspoirot and London's Holiday

Katrielle and the Doppelgänger

Genius Analyst Officer Geraldine Royer

Katrielle and the Mystery Circles

Katrielle and the Pandas' March

Katrielle and the Monster of London

Molentary Express and Three Incidents

The Lonely Ghost

Professor Layton and the Relics Treasure: Episode 2

Katrielle and the Sweet-Scented Street Labyrinth

Ultra-High Performance Robot Socketman

Katrielle and the Great Office Infiltration Strategy

The Clockwork Sweets

A Riverside Festival Love Story

The Diary of Noah

Fugitive Katri

The Goddess of the Thames Smiles a Second Time

Katrielle and the Nessie of Loch Nem

Katrielle and the Immortal Vampire

Katrielle and the Witch Wife

Katrielle and the Prince of the Stars

Katrielle and the Murder on the Spaceship Bengarian

Professor Layton and the Relics Treasure: Episode 3

Professor Layton and the Relics Treasure: Episode 4

The Cursed London Collection

Mintan's New Ambition

Dancing Scotland Yard Great Investigation Line

Katrielle and the Invisible Baby

Geraldine Royer and the Final Customer

Katrielle and the Strange Spirit Photo

Great Detective Sherl O.C. Kholmes

Katrielle and Horror Castle VR

Katrielle and the Superman Chef

Katrielle and the Ghost Club

Katrielle and the Hundred Faces of Mona Lisa

The Millionaire Ariadne's Conspiracy (1)

The Millionaire Ariadne's Conspiracy (2)

Professor Layton and the Relics Treasure: Episode 5

Professor Layton and the Relics Treasure: Final Episode

The story is set in London and follows Katrielle as she solves mysteries with her talking dog Sherl.

The Best Seasons of Layton Mystery Detective Agency: Kat's Mystery‑Solving Files

The Best Seasons of Layton Mystery Detective Agency: Kat's Mystery‑Solving Files

Season 1