A Basil Of Baker Street Mystery. An arrow with strange markings is the clue that sends Basil of Baker Street, the Sherlock Holmes of the Mouse World, scurrying off to Switzerland in search of the Lost Colony. There is the meeting with Inspector Cherbou of the Paris police mice; there is the rescue of the Faversham sisters; and then Basil is embarked at the head of an expedition of thirty-two mice up a towering mountain.

An what of the mysterious shaggy mouse - or the ravishing Zelda, the famous mouse soprano - or Professor Ratigan, sinister ruler of the mouse underworld?

Indubitable, the Case of the Lost Colony is clearly the most extraordinary exploit of this extraordinary detective.

• From the front flap.