Before the great white throne, which book was opened along with the others?

Answer: The Book of Life

Books were opened, one of them the Book of Life, and the dead were judged according to their deeds as recorded in the books.

“And I saw the dead, great and small, standing before the throne. And books were opened, and one of them was the Book of Life. And the dead were judged according to their deeds, as recorded in the books.”— Revelation 20:12 (BSB)