In Prezly, you can delete a story in two different ways.
Stories list page
In the stories page, click on the menu located on the right hand side, on the story you want to delete, after that click on Delete story.
Within the story editor.
In the story editor, click on Manage -> Delete story.
🚦If you sent any campaigns with the story previously, the recipients of that campaign will not be able to access the story. This actions can not be undone.