pangs
5× in this editionsudden, sharp feelings of pain or emotion
Short answer
At upper B2, yes, but do not choose it only because it is short. It is dense, formal, and abstract. A B1 learner will find the vocabulary manageable in places but the sentence structure tiring.
Vocabulary profile
The bars show the share of running word tokens—not the share of unique dictionary entries. Common words repeat often, so token coverage is the more useful signal for how frequently a learner may meet unfamiliar language while reading.
These are TeakReader frequency-based vocabulary bands, not official CEFR assignments for every word or an official CEFR certification of the book. They are most useful as comparative reading signals.
Beyond the percentages

Useful words to preview
These manually reviewed words recur in the analyzed edition and are more useful to prepare than one-off names. Counts are case-insensitive and include the exact form shown.
sudden, sharp feelings of pain or emotion
a wooden structure used for hanging criminals
a feeling of being sorry for doing wrong
a small glass bottle for medicine or chemicals
a sound showing mild disapproval
happened by chance; did something without planning
strange because it does not fit the situation
dark, dirty, and unpleasant
a person who cares too much about small rules and details
a sudden, strong outburst of feeling
A practical reading plan
Transparent methodology
We downloaded the UTF-8 plain-text edition from Project Gutenberg ebook 43, removed the standard Gutenberg header and footer, lowercased English word tokens, and matched them against the same ranked frequency data TeakReader uses for vocabulary analysis. We then combined token coverage with editorial review of syntax, narration, dialect, historical context, and wordplay.
Vocabulary coverage is informative but not a complete readability score. Research on reading comprehension commonly distinguishes knowing most running words from understanding every sentence; syntax and background knowledge still matter. See this Cambridge overview of lexical coverage research for context.
FAQ
We recommend Upper B2 to C1 for the original text. Very short, but written in dense, formal Victorian prose. The final chapter, Jekyll’s own statement, is the hardest part of the book. This is an editorial estimate based on vocabulary coverage and literary features, not an official CEFR rating.
It ranks 15 of 24 in our list of classic books by reading level (1 = easiest): short but formally dense. A reader who knows the B1 word bands knows about 95.44% of the words in the original text, and 96.78% at B2.
At upper B2, yes, but do not choose it only because it is short. It is dense, formal, and abstract. A B1 learner will find the vocabulary manageable in places but the sentence structure tiring.
Graded readers usually tell the story in time order and simplify the final statement. This page analyzes the complete original in Project Gutenberg ebook 43.
We analyzed the Project Gutenberg plain-text edition (43) against TeakReader’s English frequency list. The analysis found 24,500 word tokens and 3,910 unique forms after removing Gutenberg’s header and footer. Proper names, dialect spellings, inflections, and tokenization can affect the result.
Yes. The edition analyzed here is available free from Project Gutenberg. TeakReader can search Project Gutenberg books and add them to a vocabulary-focused reading library. Availability can vary by country because copyright terms differ.