A handwirtten note is a codex entry about the Glitch race and can be found in Glitch Villages or Glitch Castles.
Entry[]
Dear Deckard,
Thank you so much for getting me to safety. I knew I was right to trust you. The Outcast community here are wonderful, and speak very highly of you. You've safed many Glitch lives.
Should you ever decide to join us and retire in safety, the door is always open.
Thoughts always, Platinum