"She's different, and she doesn't want to be," Sedvall said.
Then Cicilia's guitar starts to talk to her, urging her to go to a nearby lake. There, Cicilia rescues a duck, marking the only time Sedvall shares the stage (a robotic duck is voiced by NYSTI company member David Bunce). The duck rescue, incidentally, was based on a real Sedvall experience.
The duck, dubbed Mr. Magnus Nilsson, takes Cicilia on a fantastic journey, during which her self-esteem gets a big boost.
"She discovers she doesn't want to be anyone else," Sedvall said. "She wants to be herself. That's good enough."
The play has plenty of silliness for kids -- it opens with Sedvall hanging upside down on a jungle gym -- but Sedvall and NYSTI publicist Sarah Howes said it will appeal to grown-ups as well.
"There are a lot of things that address adults," Sedvall said. "The kids will be laughing, and the adults will be laughing, too, but in a different way."
Howes, who noted the audience can sing along with plenty of musical numbers, said NYSTI has done a couple of other one-person plays and is excited for this one to kick off.
"It's fun to see how it all comes together," she said.
Recommended for ages 6 and older, "Letters from a Window in the Sky" runs through June 20, after which Sedvall will return to Sweden and her post with Teater Vastmanland. The play will be put on at the James L. Meader Little Theater on the Russell Sage Campus in Troy, with no shows over the Memorial Day weekend. Visit www.nysti.org for tickets or call the box office at 274-3256.""