SCP 4173 is a Euclid Class anomaly also known as Grandma.

SCP-4173 is a small access door in the cellar beneath an abandoned house near Mt. Zion, Georgia, USA. The abandoned house is colloquially known as the "House on Hadley Hill"
If SCP4173 is left open for a period of time1, persons nearby will hear a voice coming from within the wall past the door. This voice will inquire who the individual is and why they took so long to come, and will then ask to see the subject's hand, as the voice has trouble seeing.

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Content relating to the SCP Foundation, including the SCP Foundation logo, is licensed under Creative Commons Sharealike 3.0 and all concepts originate from http://www.scp-wiki.net and its authors.

SCP-4173 - Grandma is based on "SCP-4173" by djkaktus: https://scp-wiki.wikidot.com/scp-4173

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