In the end, Lemiel let Sienna have her way. After reading half of the book and the spells it contained, Sienna became invested in the case. Someone of her kind was doing such wicked things, and she felt a strong desire to help those who had been victimized by this person.
However, at the same time, she feared that Lemiel would resort to violent methods when interrogating the lady from the town library. Her instincts told her that Dianne was a kind person, despite them having only met once.
The next day, during Davi's class with the governess, Sienna left the duke's estate. She took the local carriage, and it didn't take long for her to arrive at the town library.
Wearing a plain grey capelet over her dress, she stepped down from the carriage. Grey clouds loomed on the horizon, and it looked like it would rain soon. It was then that Sienna realized she had forgotten to bring an umbrella.