Victor Hugo · 1802
Well beyond the comfort zone at CET-4 level. If you want it anyway, start by accepting that you will not follow every sentence.
Coverage = the share of words in the text you already know. The research gives two lines: 98% before independent fluent reading is realistic, 95% for the instructional level that needs support (Hu & Nation, 2000). Proper nouns are not counted as unknown — recognising that it is a name is enough; this book has 1,470 of them.
Advanced — read it with glosses. 185,602 words in total; at 150 words a minute for a non-native reader, about 20 h 37 min to finish. Average sentence length 16.4 words. This book is heavy on rare, archaic and invented words: even 25,000 high-frequency word families will not reach 95% coverage — its difficulty is not in the common vocabulary.
The opening of Notre-Dame de Paris, word for word. Tap any word you don't know and its meaning here appears beside it — no sign-up, tap as often as you like.
Three hundred and forty-eight years, six months, and nineteen days ago to-day, the Parisians awoke to the sound of all the bells in the triple circuit of the city, the university, and the town ringing a full peal.
The sixth of January, 1482, is not, however, a day of which history has preserved the memory. There was nothing notable in the event which thus set the bells and the _bourgeois_ of Paris in a ferment from early morning. It was neither an assault by the Picards nor the Burgundians, nor a hunt led along in procession, nor a revolt of scholars in the town of Laas, nor an entry of “our much dread lord, monsieur the king,” nor even a pretty hanging of male and female thieves by the courts of Paris. Neither was it the arrival, so frequent in the fifteenth century, of some plumed and bedizened embassy. It was barely two days since the last cavalcade of that nature, that of the Flemish ambassadors charged with concluding the marriage between the dauphin and Marguerite of Flanders, had made its entry into Paris, to the great annoyance of M. le Cardinal de Bourbon, who, for the sake of pleasing the king, had been obliged to assume an amiable mien towards this whole rustic rabble of Flemish burgomasters, and to regale them at his Hôtel de Bourbon, with a very “pretty morality, allegorical satire, and farce,” while a driving rain drenched the magnificent tapestries at his door.
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Computed by Readii from the public-domain text (updated 2026-10-21), not estimated by hand. The Readii reading level is our own scale, anchored on unknown-word density; it is not the same system as Lexile or AR and does not convert directly. Unknown words are measured against the CET-4 ∪ Gaokao lists, so this is difficulty for a Chinese-speaking learner, not a native-child reading level.