Through all these points, she thought it must be an accident and that the real person the murderer intended to kill was not Shirley.
She also wondered if the target person was Henry, then why William was poisoned too.
"I am sure that the target person is William from the beginning," Irish added to the main point.
"Shirley was poisoned because she ate the dessert that did not belong to her after the meal. And it is definitely an accident for the murderer since he couldn't expect who would not eat the dessert.
But it was complicated for William's case.
According to the steward, the Lake families were used to drinking afternoon tea around half past three. William had been accustomed to the habit for so many years, let alone the hot tea would make him feel warm since he was afraid of cold days.
