The farmyard is in uproar. The ducks are in disarray and the donkeys are dazed. The hen house is empty and every single hen has vanished without trace. There is only one thing to do. Call in Bella and Gertie, the world-famous private detectives.

Bella & Gertie 1998, Ladybird Books

ISBN-13: 9780721419145

Spanish

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Bella and Gertie 1997, Ladybird Books Ltd, London

ISBN-13: 9780721497211

New edition

Hardcover

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Bella and Gertie 1996, Ladybird Books Ltd, London

ISBN-13: 9780721496504

Paperback

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