In her short life she had seen much, experience more an suffered more than everything. As a second hand she never became famous, she never got the recognition she had deserved, and she was all right with that. Getting attention in her shoes would only become trouble in the future. Someone would dig deeper one day and find the truth about her. She wasn't a pureblood, she was the filthy daughter of a muggleborn. She didn't deserve getting attention.
After her death she coulndn't let go completely, her plans never finished. So she stayed behind watching the world passing her by, people getting married, dying, discovering a new world. And she stayed there behind as a ghost. Today she was watching Jonathan, his eyes were more watchful than the rest she had noticed so she was extra careful around him, hoping he did not notice her lurking in the shadows an breaking everything she had built over the years.
"If you are going to stand there and criticize me, at least do it where I can see you." He said not looking up from the paper he was reading. Looking around she knew they were alone. Floating in his direction she stopped in front of him crossing her arms. "And yes I am talking to you now come here." he ordered finally looking up, his smirk telling her everything she needed to know. He had known she was there ever since she died.
Elektra floated behind him to take a peek in his papers, groaning lightly at the obvious mistakes. "I wish I had a pen." she mumbled in his ear before beginning to explain to him why everything in this paper was wrong and how in every way they would fail this mission and get taken by the aurors. He watched her with the same smirk all through the conversation, from time to time taking note of what she said in the paper before him.
"And that's why you were always one of my favorites." he said at last when she finished speaking mentioned for her to float closer to him. "So what do you suggest we do?"
Even in death she was useful collecting information and three years the Purists had won the war. Her name wasn't mentioned in any book, or remembered by most people. Not that she was there to see, when the war finished she was finally able to move towards the light, her unfinished business was done.