The Adventure of the Lion's Mane

Summary

In the story «The Adventure of the Lion's Mane», Sherlock Holmes, while on holiday in Sussex, encounters the mysterious death of a teacher named Fitzroy McPherson. McPherson is found dead on the shore with the words «The Lion's Mane» on his lips. His body bears strange marks resembling burns. Holmes begins an investigation and discovers that the cause of death is a rare jellyfish, Cyanea capillata, known as the «Lion's Mane». It inhabits coastal waters and can cause fatal stings. Holmes solves the mystery, saving others from potential danger.