Beretva and break

In the bright autumn of 1900, the Szekler capital of Budapest hosted the legendary ruler of Persia. Muzaffer ed-din Qajar travels around Europe with his entire court, throwing around money and honors by the handful. He intends to spend four pleasant days in the Hungarian capital, which the press reports on in detail, but even the sharp-eyed scribblers cannot find an explanation for some incomprehensible events.
Why does the Persian ruler, upon arriving in Budapest, consider it the most urgent thing to buy underwear? What is the reason for canceling almost all of your programs on your first day and refraining from meeting the country's top dignitaries? Why does Chief of Police Béla Rudnay airtightly seal the Hungária Grand Hotel, where the Shah and his entourage live, and what can be the explanation for the staff whispering about ghosts?
When Ármin Vámbéry, the famous Eastern researcher, and Baron Richárd Ambrózy rush to the hotel, everyone can already guess that dark forces are at work in the background - and Miss Mili Hangay arrives only then!
Another Ambrózy case based on actual events, which was only mentioned in The Rudnay Murders, but now it is finally being told!