St. Henry High School junior Melanie Balster, as Queen Aggravaine, and classmate Sarah Niekamp, portraying the Wizard, practice their lines during dress rehearsal for this weekend's musical "Once Upon A Mattress." The drama club production will be held in the high school commons area at 7 p.m. tonight and 2 p.m. Sunday. Tickets at the door are $7 for adults and $5 for students.