H. G. Wells 
Penguin Readers Level 4: The Invisible Man (ELT Graded Reader) 

Penguin Readers is an ELT graded reader series for learners of English as a foreign language. With carefully adapted text, new illustrations and language learning exercises , the print edition also includes instructions to access supporting material online.
Titles include popular classics, exciting contemporary fiction, and thought-provoking non-fiction, introducing language learners to bestselling authors and compelling content .
The eight levels of Penguin Readers follow the Common European Framework of Reference for language learning ( CEFR ). Exercises at the back of each Reader help language learners to practise grammar, vocabulary, and key exam skills. Before, during and after-reading questions test readers” story comprehension and develop vocabulary.
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Exclusively with the print edition, readers can unlock online resources including a digital book, audio edition, lesson plans and answer keys.
Griffin is a scientist, and he discovers how to make things invisible. Then he becomes invisible himself. Griffin thinks that an invisible man will have a lot of power. But life becomes more and more difficult.