The final book in our story is the culminating letter called the book of Revelation.

[THIS IS] the revelation of Jesus Christ [His unveiling of the divine mysteries]. God gave it to Him to disclose and make known to His bond servants certain things which must shortly and speedily come to pass in their entirety. And He sent and communicated it through His angel (messenger) to His bond servant John, Who has testified to and vouched for all that he saw [in his visions], the word of God and the testimony of Jesus Christ. Blessed (happy, to be envied) is the man who reads aloud [in the assemblies] the word of this prophecy; and blessed (happy, to be envied) are those who hear [it read] and who keep themselves true to the things which are written in it [heeding them and laying them to heart], for the time [for them to be fulfilled] is near.

(Revelation 1:1-3 AMPC)