Browse more books
Graded reader
Spanish & English

The Lost World

El mundo perdido
Original author
Arthur Conan Doyle
Adapted by
Line by Line Publishing,

Read The Lost World by Arthur Conan Doyle in Spanish and English, a parallel text graded reader with audio. Available in CEFR levels A2, B1, B2, and C2.

About this book

It begins with a proposal that goes wrong. Malone, a young reporter for the Daily Gazette, kneels before the proud and lovely Gladys, only to be told she could never love an ordinary man. "There are heroisms all round us waiting to be done," she says, and with that one sentence she sends him off to find one. What he finds is Professor Challenger — a zoologist with an Assyrian-bull beard, huge hairy hands, and a temper that lands the two of them tangled in a chair and rolling down the front steps into the gutter.

Available editions

A2
Short, concrete sentences for early learners.
4,317 sentences
B1
Longer sentences and a wider vocabulary.
4,317 sentences
B2
Complex sentences and a fuller vocabulary, close to everyday native reading.
4,317 sentences
C2
Original English — The most complex prose — long, intricate sentences, and advanced vocabulary.
4,317 sentences

Read a sample

«Hay heroísmos por todas partes a nuestro alrededor»
“There Are Heroisms All Round Us”
1

El señor Hungerton era el padre de Gladys, y era de verdad la persona con menos tacto del mundo.

Mr. Hungerton was Gladys’s father, and he was truly the most tactless person on earth.

2

Se parecía a una cacatúa despeinada y llena de plumas.

He looked like a messy, feathery cockatoo.

3

Era muy bonachón, pero solo pensaba en sí mismo.

He was very good-natured, but he only thought about himself.

4

Una cosa podría haberme alejado de Gladys.

One thing could have kept me away from Gladys.

5

Era la idea de tenerlo a él como suegro.

It was the thought of him as my father-in-law.

6

Estoy seguro de una cosa.

I am sure of one thing.

7

Él creía que yo visitaba los Castaños tres días a la semana para disfrutar de su compañía.

He believed I visited the Chestnuts three days a week to enjoy his company.

History

  1. Written by Arthur Conan Doyle in English
  2. Adapted by Line by Line Publishing in 2026