P.S. I love you

Lucy was tired. Tired of trying. Tired of failing. The damned sword grazing her head. She was running out of time.
If only she could start her lighthouse with brand-new stones! But no, bloody Mr. Carter forbade it! She knew the trick was to smoothe the old ones and reshape them, but she never did it right, the fractures in them were too deep. A few days earlier, Mr. Carter said she didn't dig enough. Lucy stuck her tongue out at him.
It was late. She wanted to sleep, but she was too tired to rest. Missing Rupert so much was stressful. When he was close she forgot she was failing him too. She had to sleep. She and Rupert had a date in Dream Land.
Lucy took a sheet of paper with the school letterhead and wrote
My love,
I'm trying.
Lots of kisses,
Lucy.
.