Answer:
Dearest Jo,
Beth getting sick is not your fault. (place quote here about how Beth got sick) Scarlet fever is very easy to get and tough too get rid of. Beth's illness may be the answer to her problems. I'm not saying this in a mean way dearest Jo. No. But Beth has always been so afraid to grow older and to get married. She may have prayed for something to happen to cause her to fall ill. She loves being inside and playing with her piano. Now that she has this illness, she is happy because she is stuck doing the things she loves. (I will leave the rest of the note to you!)
Yours forever,
(Your name)
Explanation:
I hope I helped! :)