Since I don't know the details of 'Sonja Secret Story', I can't say much about Sonja specifically. But she could be a character with unique qualities, like being brave or having a special talent in the story.
One great Red Sonja fanfiction is 'The Redemption of Sonja'. It has a really interesting plot where Sonja has to face her past mistakes and make amends. The author does a great job of portraying her strong character.
I'm not sure specifically who 'Sonja Jansen' in 'Secret Story' is. There could be many people with that name. It might be a character in a specific version of 'Secret Story' that is not widely known, or it could be a personal name within a more local or specific context related to the 'Secret Story' production.
Red Sonja's origin story has her as a fierce warrior. She hails from the Hyborian Age. She was once a normal woman, but after a series of tragic events, she made a pact with a powerful deity. This pact granted her extraordinary strength, speed and combat skills. She then set out on a journey to avenge her family and became known for her red hair and scant yet iconic armor.
One of the best Red Sonja stories is 'Red Sonja: Queen of Plagues'. In this story, Sonja shows her tenacity and combat skills as she battles against a deadly plague and the forces behind it. Her character is well - developed, and the story is filled with action - packed scenes.
The 'Red Sonja' novel centers around Red Sonja herself. In the story, she travels across different lands. These lands could be filled with all kinds of creatures, from fearsome beasts to strange magical beings. Red Sonja is constantly in a struggle, whether it's against an oppressive ruler or a dark force that threatens the land. Her character is complex, being both a warrior with a tough exterior but also having her own vulnerabilities and a sense of honor that guides her actions.
It depends. If you're a big fan of Red Sonja and enjoy having a collection, then they can be worth it. But if you're just casually interested, maybe not.