Check your local library’s digital catalog. Many libraries purchase OverDrive or Libby access to graded readers. Search for "Burlington Books" within the library app. If the title exists, you can "borrow" the verified PDF for 14-21 days.
Do not let fake "free PDF" promises haunt your cybersecurity. Get the verified version the right way, and enjoy the story as Burlington intended: with pre-reading glossaries, comprehension quizzes, and zero malware.
Contact Burlington Books directly via their website ( burlingtonbooks.com ). Use their "Contact" form. Explain you are an independent learner seeking "The Ghostly Visitors." Ask if they offer single-user digital access. Sometimes they can sell you a PDF for €3-€5.