All the Light We Cannot See
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50 free All the Light We Cannot See trivia questions with answers — literature quiz, new questions added Oct 2026.
Anthony Doerr's All the Light We Cannot See follows two children on opposite sides of Hitler's war: Marie-Laure LeBlanc, a blind girl who flees Paris with her father, and Werner Pfennig, a German orphan whose gift for radios carries him into the army. Their paths cross for a few hours in the besieged port of Saint-Malo, and readers have been talking about those hours ever since. This quiz covers the whole novel: the two protagonists and the people around them, the legend of the Sea of Flames, the Nazi school that shapes Werner, the Resistance work in Etienne's house, and the siege that brings the story to its climax. A handful of questions step outside the plot to the author, the honours the book collected and the 2023 screen adaptation. It is written for students checking their reading, book clubs that want a discussion starter, and anyone who has just turned the last page. Every answer comes with a short explanation, so a wrong guess still teaches you something about the book.
30 of 50 questions with answers and explanations. Play the quiz
Q 01In All the Light We Cannot See, the Sea of Flames hunted by a Nazi sergeant major is what kind of gem?
A diamond
A diamond found by a prince in a dry riverbed in Borneo, the Sea of Flames is blue with a touch of red at its centre. That flash of colour gives the stone its name.
Q 02Which Jules Verne novel does Marie-Laure broadcast from the attic in All the Light We Cannot See?
20,000 Leagues Under the Sea
20,000 Leagues Under the Sea goes out in instalments, read from braille between her pleas for help. Werner, trapped under a bombed hotel, picks up the broadcast on a radio he has just repaired.
Q 03What job does Marie-Laure's father Daniel hold at the Museum of Natural History in All the Light We Cannot See?
Locksmith
Locksmith Daniel LeBlanc runs the museum's key pound, where thousands of keys are handed out and returned each day. The same craft later draws him into the plan to protect its greatest treasure.
Q 04How is Etienne, who shelters Marie-Laure in his Saint-Malo house, related to her in All the Light We Cannot See?
Her great-uncle
Her great-uncle Etienne is a war veteran who has shut himself indoors for years. Marie-Laure's arrival, and her delight in his books and radios, slowly draws him out.
Q 05Which objects, falling from the sky over Saint-Malo, give the opening chapter of All the Light We Cannot See its title?
Leaflets
Leaflets pour down on 7 August 1944, ordering the townspeople to get out before the bombers come. Marie-Laure finds one at her window but, being blind, cannot read it.
Q 06What kills Werner Pfennig near the end of All the Light We Cannot See, after he wanders feverish from a hospital tent?
A landmine
A landmine laid by his own army kills Werner instantly, soon after he rescues Marie-Laure. Doerr has said many readers wished the pair had been given more time together.
Q 07Which streaming service released a four-part miniseries of All the Light We Cannot See in November 2023?
Netflix
Netflix released all four episodes on 2 November 2023, after a premiere at the Toronto film festival. Critics were far cooler on the series than they had been on the book.
Q 08What does Daniel LeBlanc make so his blind daughter can learn Paris streets in All the Light We Cannot See?
A wooden scale model
A wooden scale model of the neighbourhood, down to its benches and storm drains, lets Marie-Laure learn every street by touch. Her father then has her lead him home with only her cane.
Q 09The title All the Light We Cannot See refers to which physical phenomenon, most of it undetectable by human eyes?
Electromagnetic waves
Electromagnetic waves fill the title: visible light is a sliver of the spectrum, and the radio signals that link Werner and Marie-Laure travel in the unseen rest.
Q 10Which country's bombers and artillery pound German-held Saint-Malo in August 1944 in All the Light We Cannot See?
The United States
The United States Army besieged the German garrison and left most of the old walled town in ruins. Doerr chose the setting after marvelling at how well the rebuilt city hides its own burning.
Q 11At fifteen, every boy from Werner Pfennig's orphanage in All the Light We Cannot See must go to work where?
In the coal mines
In the coal mines, where his father was killed and never recovered, is the future Werner dreads most. His gift for fixing radios turns out to be his way round it.
Q 12Frederick, Werner's gentle bunkmate at the Nazi academy in All the Light We Cannot See, is an expert on which creatures?
Birds
Birds are Frederick's passion: he names them from the dormitory window and keeps a banned two-volume Audubon hidden at home in Berlin. His refusal to join in the school's cruelty costs him dearly.
Q 13Each birthday in All the Light We Cannot See, what does Marie-Laure's father give her with a treat hidden inside?
A puzzle box
Q 21Which eye condition leaves six-year-old Marie-Laure LeBlanc permanently blind in All the Light We Cannot See?
Cataracts
Cataracts in both eyes take the last of her sight, and at first she feels safe only in bed. Her father answers with patience, daily routines and a lot of sugary coffee.
Q 22On which tidal rock off Saint-Malo is Etienne imprisoned after his arrest in All the Light We Cannot See?
Fort National
Fort National, designed by Vauban a few hundred metres off the town walls, holds Etienne on false terrorism charges. He walks free after the siege and finds Marie-Laure again.
Q 23Where does Marie-Laure leave the Sea of Flames before she escapes Saint-Malo in All the Light We Cannot See?
In a flooded grotto
A puzzle box waits for her each year, and she cracks them faster every time; the one for her seventh birthday holds chocolate. The habit trains the quick fingers she relies on later.
Q 14In All the Light We Cannot See, Marie-Laure collects Resistance messages for Etienne hidden inside what?
A loaf of bread
A loaf of bread from Madame Ruelle's bakery carries each slip of paper, baked inside. Etienne then broadcasts what the slips say from the set hidden under his roof.
Q 15Which nickname follows Volkheimer, the music-loving sergeant who leads Werner's unit in All the Light We Cannot See?
The Giant
The Giant earns the name through sheer size, and cadets trade rumours about his strength and cruelty. Yet he treats Werner almost as a brother.
Q 16What do Werner and Volkheimer finally use to blast out of the buried hotel cellar in All the Light We Cannot See?
A grenade
A grenade is their last gamble after days trapped in the dark. Volkheimer decides to risk it once Marie-Laure's music comes through the radio Werner has repaired.
Q 17According to the legend told in All the Light We Cannot See, what does the Sea of Flames give whoever keeps it?
Eternal life
Eternal life comes at a price: the keeper cannot die, but misfortune falls on everyone they love. Marie-Laure frets for her father until he tells her the curse is only a story.
Q 18What does Dr. Hauptmann falsify to send Werner Pfennig from school to the army in All the Light We Cannot See?
His age
His age becomes eighteen on paper when he is really sixteen, punishment for asking to leave the school. Werner is soon hunting partisan radios in Russia.
Q 19Which Saint-Malo shopkeeper reports Daniel LeBlanc to the occupying Germans in All the Light We Cannot See?
The perfumer
The perfumer, Claude Levitte, spots a stranger from Paris pacing the streets and taking notes, and decides the authorities should know. Daniel was only measuring the town for a present for his daughter.
Q 20As a scientist at the Paris museum decades later in All the Light We Cannot See, Marie-Laure studies which animals?
Mollusks
Mollusks have held her since childhood, when the museum's Dr. Geffard taught her the names of his shells. As a graduate student she collects snails on the reefs of Bora Bora.
In a flooded grotto under the ramparts, once a kennel for the mastiffs that guarded the beach, she sets the stone down in the seawater. Then she hands Werner the key to its gate.
Q 24Which canned fruit do Marie-Laure and Werner share during their brief time together in All the Light We Cannot See?
Peaches
Peaches, put up by Madame Manec before she died, are in the unlabelled can Marie-Laure has been saving. They are the last food Werner manages to keep down.
Q 25The radio professor young Werner adores in All the Light We Cannot See is which relative of Marie-Laure?
Her grandfather
Her grandfather Henri made the recordings before he was killed as a young soldier. Played from the attic at night years later, they carry all the way to a German orphanage.
Q 26Which Debussy piano piece does Marie-Laure play at full volume from the attic in All the Light We Cannot See?
Clair de lune
Clair de lune goes out over the transmitter as a dare to the intruder downstairs. In a buried cellar across town it reaches Werner's repaired radio, and Volkheimer decides to try blasting a way out.
Q 27In which city does Werner's unit kill an innocent girl after a mistaken radio trace in All the Light We Cannot See?
Vienna
Vienna is where Werner's sums point to the wrong flat, and a red-haired child in a maroon cape dies for it. She haunts him for the rest of the war.
Q 28The Saint-Malo hotel where Werner's unit shelters in All the Light We Cannot See is named after which insects?
Bees
Bees fascinated the wealthy privateer who once owned the house, which is why murals of them cover its walls. It later became an elegant hotel, and by August 1944 the Germans have turned it into a fortress.
Q 29Which illness is steadily killing Sergeant Major von Rumpel while he searches Saint-Malo in All the Light We Cannot See?
Cancer
Cancer, in the form of lymphoid tumours, spreads despite injections that leave him dizzy and confused. He keeps up the hunt from a hotel bed, wrapped in blankets.
Q 30Which hair colour makes the orphan Werner Pfennig stand out from childhood in All the Light We Cannot See?
Snow white
Snow white hair, a small frame and ears that stick out make Werner unmistakable. At the entrance exams for the Nazi academy, the examiners rate his hair the lightest of any boy's.