Will you walk into my parlour?" said the Spider to the Fly,
'Tis the prettiest little parlour that ever you did spy;
The way into my parlour is up a winding stair,
And I've a many curious things to shew - when you are there."
Oh no, no," said the little Fly, "to ask me is in vain,
For who goes up your winding stair can ne'er come down again."

- from 'The Spider and the Fly' by Mary Howitt

Read the complete poem here