Professor Ratigan

Basil of Baker Street is a series of children's novels written by Eve Titus and illustrated by Paul Galdone. The stories focus on Basil of Baker Street and his personal biographer Doctor David Q. Dawson. Together they solve the many crimes and cases of the mouse world. Both live in Holmestead, a mouse community built in the cellar of 221B Baker Street, where Sherlock Holmes is a tenant upstairs. The five books were originally published from 1958 to 1982. Disney's 26th animated film was based on the Basil novels and titled The Great Mouse Detective which was released in 1986. Alternatively, Basil of Baker Street is both the name of the main character and the title of the first novel in the series, published in 1958, by Whittlesey House, a McGraw-Hill imprint.

All five books were written by Eve Titus, illustrated by Paul Galdone, and published by McGraw-Hill. The note A Basil of Baker Street mystery is sometimes cataloged as a subtitle.

Basil and Dawson go searching for the missing twin children of Mr. and Mrs. Proudfoot. The search takes them from Baker Street to a harbor, and even to the countryside of England. The plot device of a typewriter as the 'smoking gun' is adapted from the Sherlock Holmes story A Case of Identity.

Basil leads an expedition in search of the Lost Colony of the Tellmice. Along the way he is pursued by Ratigan and his thugs.

Basil finds a clue that hints at the existence of Pygmy Cats. He and Dawson search for the truth, all the while avoiding Professor Ratigan and Captain Doran. Before they can even go searching, however, they must restore the Maharajah of Bengistan to his throne.

About to embark on a trip to Mexico to help out with a case there, Basil is suddenly called upon to solve the Case of the Counterfeit Cheese. Then, upon his arrival in Mexico, he discovers that that famed "mousterpiece", the Mousa Lisa, is missing, and that it is up to him to find the culprit. Almost immediately afterwards, Dr. Dawson is kidnapped.

Basil and Dawson continue their North American adventures by solving two mysteries in the Wild West. First, they have to stop a gang of smugglers from taking control of part of the West, and then solve the mystery of the "Thing" that is scaring guests of the Hathaway Hotel.

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Wikipedia