Book of Ra

The Book of Ra is the book that Carter and Sadie search for after Horus warned them of Apophis' rising. It allows one to find and revive Ra.

History
When Ra stopped making his nightly journey, the cycle was broken, and Ra faded into permanent twilight—at least, so we think. He meant to sleep forever.

The Book of Ra describes how Ra can be awakened. Ra’s priests created the book in ancient times and kept it secret, dividing it into three parts, to be used only if the world was ending.

Sections
The Book of Ra was divided into three sections. It was intentionally divided to make it difficult to find, so only the worthy would succeed.

Section 1
The first part of this book was found in the Brooklyn Museum. It was hidden in a statue of the god Khnum, who was depicted forming a human out of clay. Its location was disclosed to Carter by the falcon war god Horus in a dream. This section was used by Sadie Kane to return the ren of Khnum.

Section 2
The second part of this book was in St. Petersburg. It was hidden in the top drawer of Vlad Menshikov's desk. Its location was disclosed to Sadie by Anubis during a chat in London. This section is used by Sadie Kane to awaken Ra's form as "the noonday sun".

Section 3
The last part of this book was in Bahariya. It was hidden in a tomb. Its location was disclosed to Sadie by Set in St. Petersburg. This section of the book was used to awaken Khepri, the scarab beetle, but in doing so, releases Apophis. After this section was read, the book of Ra vanished.