What secret is hidden in the tapestry depicting a garden with beautiful flowers, among which lilies stand out, but only one is black?
Oldřich of Chlum, with his assistants, Squire Ota and Commander Diviš, is investigating the death of Lady Sibyla, cousin of the noble and influential Oldřich Zajíc, at his castle, Valdek. However, a family celebration is currently taking place at the castle, and there are more than enough suspects. What’s more, it is not entirely certain whether Sibyla's death was a murder or just an unfortunate accident. But another murder quickly dispels this doubt…
