Why is it up to Sadie and Carter to defeat Set?

What does Julius Kane do at the British Museum?

What is the House of Life, how do they feel about Sadie and Carter, and why?

Why does Zia help Sadie and Carter?

How do Horus and Isis assist Carter and Sadie throughout The Red Pyramid?

What do Carter and Sadie's adventures in The Red Pyramid do to their sibling relationship?

Why do the gods help the Kanes in their battle against Set?

Why does Sadie mess up the spell to destroy Set?

According to Julius Kane, why must he stay in the Land of the Dead?

Why do Sadie and Carter make the recording of their story?