Final answer:
In the depths of her illness, Alicia may be experiencing hallucinations.
Step-by-step explanation:
In the depths of her illness, Alicia imagines she sees something that may not be real. This is a common occurrence when someone is experiencing a fever or delirium. It is called a hallucination. Hallucinations can cause a person to see, hear, feel, or smell things that are not actually there. In Alicia's case, her illness is causing her to imagine something that is not real.