"We consciously declare that Science and Health, with Key to the Scriptures, was foretold, as well as its author, Mary Baker Eddy, in Revelation x.

She is the 'mighty angel,' or God's highest thought to this age (verse 1), giving us the spiritual interpretation of the Bible in the 'little book open' (verse 2).

Thus we prove that Christian Science is the second coming of Christ-Truth-Spirit."-- Lecture by Dr.
George Tomkins, D.D.

C.S.
There you have it in plain speech.

She is the mighty angel; she is the divinely and officially sent bearer of God's highest thought.