Ella Päffgen

A 30-year-old missing persons case lands on Thiel's desk: after the disappearance of 15-year-old Sven, his parents received letters from an unknown Chris, who was supposedly travelling with their son. Now, new letters arrive from Chris.

When a poison attack is made on the racehorse Cagliostro, Lou flees the Immenhof with the horse. Together they find refuge with Cal, who lives away from civilization with his semi-wild horses. In his new home, Lou makes the horse promise that it will never have to take part in a race again. However, this is by no means the end of the threat to Cagliostro.

After the death of their father three sisters, sixteen year old Lou, Charly who is in her early twenties and Emmie who is a mere child, have to try and run the family's horse farm between them. They have to overcome all manner of adversity in order to keep their beloved farm.