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The diagram in the OP could be written as a tree of text. threat from Venda marriage to prince Jaxon betrayed by mother / father flees to Terravin to live as a barmaid Rafe + Kaden...
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#3: Attribution notice added
Source: https://writers.stackexchange.com/a/34629 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/
#2: Initial revision
The diagram in the OP could be written as a tree of text. threat from Venda marriage to prince Jaxon betrayed by mother / father flees to Terravin to live as a barmaid Rafe + Kaden live with her; she falls in love with Rafe etc. More generally (instead of "tree view" or "flow chart") you might find that this type of diagram/software could be called a "[Mind map](https://en.wikipedia.org/wiki/Mind_map)" -- and so for example [https://www.google.fr/search?q=mind+map+free+mac](https://www.google.fr/search?q=mind+map+free+mac)