The Rival Monster is a 1952 comedy novel by the British writer Compton Mackenzie.

[1] It includes characters from two earlier hit novels by Mackenzie Whisky Galore and The Monarch of the Glen.

After the Loch Ness Monster is apparently killed in a collision with a flying saucer, a new monster is spotted at the remote island of Little Todday in the Outer Hebrides, leading to tourists to flock to the area.

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