Oh, BRRRRROTHER Hi. I'm Julie Welsh. My nine-year-old brother is always cooking up schemes...and I get blamed. Because I'm older. Eleven, to be exact. But Frankie has his good points too, as I told Mrs. Kaplan, my 89-year-ald pen pal, who lives in Kansas. I write Mrs. Kaplan about everything. Even my secrets. She was the first one I told about my juvenile arthritis. Mrs. Kaplan understands everything. She has arthritis too. I was feeling tired and...