Dear Hermione,
I hope you can forgive me for taking away your memories. We were trying to protect you. Lily and Bella tried to find out another way, but we bout know this is the only path. Walburga, your godmother, is the only one who knows about this. If she´s still alive when you recover your memories, go meet her she will be wating. In other case, find Sirius. After that meet us where we shared so many memories.
You must protect yourself if the times are war times still. Prior to recovering your memories, you must seek protecting along side to Abraxas, The Dark Lord or Rebastan. Only that three are known to not alarm Dumbledore if you appear with them, after all you are part of on the darkest families.
My dear sister, I know I'm not making sense. Heres the charm to break the curse: Di deaeque dent, qui errant in memoriam rapuit ex illio inihi. Do it three times on a full moon night.
Your beloved brother,
James Potter