The Baker Street Irregulars read a letter from Eliza's missing grandfather during a dress rehearsal for Coldwater High School's "Sherlock Holmes: The Baker Street Irregulars" on Monday evening. Performances are at 7 p.m. Thursday, 8 p.m. Saturday and at 4 p.m. Sunday in the high school auditeria. Presale tickets, available through Denise Petersen or the high school office, are $8 for adults and $7 for students. Presale tickets end on Wednesday at 7 p.m. Admission at the door is $10 for everyone.