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MARGIN CLASSICS PUBLIC DOMAIN 2026 The HiddenStaircase CAROLYN KEENE 1930
Free ebook · New in the public domain, 2026

The Hidden Staircase

Carolyn Keene

Nancy Drew investigates a haunted mansion and finds the secret passage behind its ghostly noises.

First published 1930 · 38,265 words · about 3 hours to read · 145 pages at 10.3″

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Public domain in the United States, so downloads are for readers in the US. It’s still in copyright in many other countries (the author died in 2002).

The Margin edition

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About this edition

The text is from the Standard Ebooks edition, carefully proofread by volunteers and dedicated to the public domain. The cover, the EPUB edition and the PDF typesetting are ours, and free to share.

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