Irish's thoughts became clear as she realized that Joseph had no involvement in her father's death.
She proceeded to enter William's study, which was relatively smaller in size compared to Henry's study. Inside, she noticed a collection of refined coffee cases and various ingredients prepared by Kelly, but they had not been taken away.
Irish recognized the material of the coffee table, which appeared to be quite valuable, possibly worth around $500,000. She speculated that William might have wanted to take it with him.
As she observed William's collection of books, she noticed that most of them were old, and some were even damaged. Irish was unaware that William possessed a wealth of knowledge and talent, particularly in geography and history.
However, upon flipping through the books, she didn't find anything particularly noteworthy. Irish wondered what else William could have come to retrieve from the study.