A mysterious masked stranger visits Sherlock Holmes and claims that a major royal scandal is about to take place. He asks for the detective's help, but for once Holmes is outwitted …by a woman.

This graded reader is suitable for non-native learners of English at intermediate level (CEFR B1) and younger native speakers.

Features

• Comprehension and vocabulary tasks
• Summary of the story
• Endnotes for difficult words, place names and cultural references
• Word list at the end of the book