Complex sentence: Sheeana does not reveal that they have been considering the option of reawakening Teg's memory through imprinting, nor does Odrade discover that Sheeana has the keys to the no-ship prison of Duncan.
Split into simpler sentences: Sheeana does not reveal that they have been considering the option of reawakening Teg's memory through imprinting. Nor does Odrade discover that Sheeana has the keys to the no-ship prison of Duncan.