ALEXANDRIA, Minn. — They say if you love something, you should set it free. If that's true, Sarah Curtis of Alexandria must really love butterflies. So far this year, she has released more than 230 monarch butterflies that she raised from caterpillars and eggs. As she watches each one fly away — up, up into the sky — you can see the delight in her face. "I love it," Curtis said. "It's just kind of a little, fun hobby I do. It keeps me busy."