Grace Livingston Hill 
Crimson Roses 

One rose changes a young womans solitary life forever. After setting out on her own, Marion Warren is overcome with drab routine. Her solution: buy a season ticket to the symphony. But to Marions surprise, each night she finds a mysterious crimson roseand no sign of who left it. Then wealthy Jefferson Lyman whisks into Marions already up-turned world, bringing with him socialite Isabel Cresson. Jefferson sets out to win Marions heartbut Isabels dangerous envy may thwart his chances altogether.