TY - BOOK AU - Martin,Ann M. AU - Tang,Susan TI - Karen's secret valentine T2 - Baby-sitters little sister SN - 0329146459 U1 - [Fic] 21 PY - 1997/// CY - New York PB - Scholastic KW - Schools KW - Fiction KW - Valentine's Day KW - School stories KW - sears N1 - "A Little Apple paperback."; 2.8; Follett Library Resources; 3-6; 3-6; Follett Library Resources N2 - Karen's class is having a secret Valentine exchange and she picks her enemy Pamela, but she decides to be nice anyway. Pamela starts receiving mean notes that Karen did not write and other mix-ups start happening. Karen and her friends try to discover who has been messing up the Valentine's fun ER -