Lenora's extreme shyness prevents her from attending many social events-- and her father has decreed that only one Wilton girl can be in season at a time. Younger sister Cassie has no choice except to wait her turn. Evan Glenside, an East London clerk, has just been named his great-uncle's heir, and a chance meeting between Evan and Lenora promises to change everything. Cassie begins to write Mr. Glenside letters in the name of her sister. As secrets are revealed, the hearts of Cassie, Evan, and Lenora are tested.