Looking for Deleted Sherlock Fic: "2+2=5" by nautilus (nautilus_scout)

Hi everyone! I am looking for a copy (PDF, ePub, or text) of a deleted Sherlock (BBC) fanfiction that was originally posted on AO3.

• Title: 2+2=5 (or "2 + 2 = 5")
• Author: nautilus (possibly went by nautilus_scout at some point)
• Fandom: Sherlock (BBC)
• Stats: ~33k words, 4/4 chapters Completed
• Tags/Themes: Autistic Sherlock, Backstory, Mycroft Holmes, Mummy Holmes, Dysfunctional Family, Ableism, Hurt/Comfort, Mental Health Issues

Summary/Opening: Sherlock is four years old and doesn’t have any words, but there’s a bird skeleton under a glass dome in his father’s study that he thinks might be his kindred spirit.

It seems like maybe the author has unfortunately deleted or hidden their works under a mystery collection, so the original live links no longer work. If anyone has this saved in an archive or an old drive download, I would be incredibly grateful if you could share with me.

Thank you so much!