Ive also heard of putting a book and/or newspaper in a paper with with kitty litter. The litter is supposed to absorb the smells.
I have had good luck sprinkling baby powder in the pages of old books. shake out excess after a few days. Do not breathe in the powder dust. It is a lung irritant.
Sprinkle the newspaper with dry baking soda, seal in a plastic bag for a few days. Vacuum on low with a brush attachment to remove the baking soda. That should make it smell good again.
Have you tried sprinkling the newspaper with baking soda to pull out any odors?
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