Seeking Fic

I've lost a set of my Fic bookmarks when my computer died, and I know some of the bookmarks were for fics used to be on GrangerEnchanted (which has disappeared) and on deleted LJ comms. What I'm looking for falls in two parts:

  1. I'm basically looking for Dark!Hermione Granger (not evil, but either sorted to Slytherin, spying or intellectual curiosity going too far). I'm not fussed on pairing. Any links welcome - it's not a tag particularly used on Ao3, and I enjoy her not being a goody-goody.

  2. There's two specific fics I cannot for the life of me remember the names of. One featured a spell book written in Ron Weasley's blood and the other had a potion that left the imbiber with an intricate tattoo that was related to their heritage.

Help?