It's important to note that:
* Frederick Chase is a mortal and Annabeth's biological father.
* Athena is Annabeth's divine parent. She is a demigod, meaning she is half-human and half-god.
* Athena never stayed with Annabeth, as it is forbidden for gods to openly interact with their demigod children.
* Annabeth has always known she is a demigod, and Athena has communicated with her through dreams and visions.
This information is crucial to understanding Annabeth's character development throughout the series, as she struggles to reconcile her mortal and divine heritage.