Sure for anyone, it doesn't contain what they wanted to see. It's just a normal greeting to the lady as his fiancee and was hoping for her to come to the imperial household for a moment, however, after Victoria dug deeper earlier, she found something interesting
Like how the words were aligned to each letter perfectly after every word downwards. When she reads it, she already knew what he wanted to let her know. Charles was very secretive about matters that were involving his life and if he was being threatened. He'll never let anyone know about it