"The Nature of a Cat"
-- a sonnet
A cat is like a liquid in its form,
Forever flowing over couch and chair,
Its purr a river's gurgle, always warm --
Except the nose that pushes through your hair.
A cat's a very master of the night,
A shadow soft of paw and sharp of ear.
The eyes are two-mooned lanterns filled with light
That pierce the veil of twilight cool and clear.
A cat is velvet death to bird and mouse,
A shade unseen until it is too late,
But to the people living in the house,
The ease of every sorrow, small or great.
All true, yet only guesses, none too pat --
For who can know the nature of a cat?
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The sonnet is a form of 14 lines, customarily written in iambic pentameter, with any one of several popular rhyme schemes. Learn how to write one.