Your answer, "No", is not correct.
The correct answer to
Is God the author of evil?
is
Yes
as shown by
Isaiah 45:7
which is
- KJV
- I form the light, and create darkness: I make peace, and create evil: I the LORD do all these things.
- NIV
- I form the light and create darkness, I bring prosperity and create disaster; I, the LORD, do all these things.