Using Graded Readers for English Practice: My Experience With Murder on the Orient Express
Graded readers are exactly what they sound like: books simplified to match specific language levels. Penguin Readers is one of the most widely used series, and their adaptation of Agatha Christie's Murder on the Orient Express sits comfortably at Level 4, which roughly corresponds to B1-B2 on the Common European Framework. That means you should understand about 70-80% of the text without constantly reaching for a dictionary. Anything less than that and you will spend more time translating than reading. I picked up a copy of the On The Orient Express Penguin Readers edition about three years ago when a student asked me for something engaging that wasn't at their level but still challenge enough to force them to pay attention. The book itself is solid. The vocabulary is controlled, the grammar stays within expected bounds for the level, and the mystery plot actually keeps you turning pages, which is more than you can say for most graded readers that read like instructional manuals dressed up as fiction.
On The Orient Express Penguin Readers
Here is the part most people skip. The level numbers on Penguin Readers are not precise science. A Level 4 book labeled B1-B2 can feel very different depending on the subject matter. Murder on the Orient Express uses a lot of formal dialogue and period-specific vocabulary that might trip up even a confident B1 reader. Words like "alibi," "testimony," "suspicion," and "detective" appear frequently. If your student or yourself has not encountered these terms before, expect the reading to slow down significantly regardless of what the level says. The audio accompaniment is where this edition actually earns its keep. Penguin Readers include downloadable audio from native speakers, and having the audio available changes the entire experience. You can listen while reading, which helps with pacing and pronunciation. More importantly, it lets you follow along even when a sentence structure catches you off guard. I always recommend listening to a chapter first before attempting to read it. It cuts the confusion rate roughly in half and makes the second pass through the text feel much smoother. One thing the publishers do not warn you about: the text is simplified to the point where some of Agatha Christie's original nuance is gone. The detective's reasoning process is summarized rather than fully shown. If you are using this to study mystery narrative structure or logical deduction writing, you will find gaps. The book tells you what Hercule Poirot figured out but skips the intermediate steps that make the original so satisfying. For language learning purposes this is fine. For anyone who wants the full literary experience, you will notice the difference immediately.
I ran into a specific issue last year with a group of intermediate learners who were all reading at about the same pace. Everyone finished the book in two weeks but could barely answer detailed comprehension questions. The problem was they were reading word-by-word and getting stuck on individual vocabulary items instead of focusing on gist. The workaround was simple: I made them read each chapter with the audio on while following the text, then required them to summarize each chapter in three sentences before moving to the next one. Their retention jumped noticeably after that change. Another practical tip that does not get enough attention. Do not look up every unknown word. If a sentence has two or three words you do not know but you can still understand the overall meaning, move on. Looking up every single unfamiliar word will kill your reading flow and turn a fun mystery into a chore. I usually tell learners to only look up words that repeat across multiple pages or words that seem central to understanding the plot. Everything else you can safely ignore. The Penguin Readers app is another option if you prefer digital over paper. It has the same content, the same audio, and a built-in dictionary. The dictionary lookup is convenient but I have noticed it encourages over-reliance. People end up looking up words they could have guessed from context. The app also tracks your reading progress, which some learners find motivating while others find it adds unnecessary pressure. Use whatever format works for your situation.
Get the Full Details

You can find the book through most major online retailers or directly from the Penguin Books website. The audiobook is available through the Penguin Readers app and various audio platforms. Pricing varies by format and region, but it is generally in the ten to fifteen dollar range for the paperback edition. Some libraries carry Penguin Readers in their English learning sections, so checking there first is worth a try if you want to avoid the cost entirely. The main limitation of this particular title is the vocabulary. While the overall grammatical structures are well within the B1-B2 range, the mystery genre introduces terminology that is not common in everyday conversation. Police procedures, legal terms, and investigative language are all present. If your goal is conversational English, you might get more practical value from a Penguin Readers title set in a modern everyday situation. This book is better suited if you want something that feels more like a real novel while still being accessible. Overall it is a reasonable choice for intermediate to upper-intermediate English learners who want to read something substantial without struggling through the original. The audio support is genuinely useful. The level designation is a useful guideline but should not be treated as a guarantee. Read a few pages first, ideally with the audio, and judge whether the text feels right before committing to finishing the whole thing.