I haven't read the last page of that novel yet.

Literal

I [topic-は] still that novel [possessive-の] last [possessive-の] page [object-を] have-not-read.

まだ~ていない ('have not yet done') combines まだ ('still, yet') with ~ていない (negative resultative). 最後のページ ('last page'). A simple statement about incomplete reading.