Attended by ladies of the court, Elena Torry-Schrag (center front) plays Princess Fred in Forest Grove High School's production of "Once Upon a Mattress." The musical, comical version on the "Princess and the Pea" fairy tale starts at 7 p.m. Thursdays, Fridays and Saturdays, from March 7 through March 16. Tickets are $9 for adults, $7 for students. For more information, call 503-395-2432. The school is located at 1401 Nichols Lane.