Three things are linked on the news: A man claims he hears voices directing his actions—Whales are suffering from excess shipping noise—Container ships are increasing in size and volume.
I've written several novels featuring that very thing. In the first published book, Still Rock Water, my heroine envisions others at times of need and whispers advice to help them through a situation. The second soon to be released book, Tidal Surge, shows the bad voice that wants to cause harm. You can see my books at the bottom of the page.