Neznakomets Iz 13 Kvartiry: Skachat Knigu

Since this is an older classic, it is widely available on various digital platforms:

Many classic literature sites like Bookz.ru or Lib.ru host the text for free reading. skachat knigu neznakomets iz 13 kvartiry

It is included in the "Library of the Pioneer" (Biblioteka pionera) series, specifically Volume 5. Since this is an older classic, it is

Follows the adventures of two mischievous boys, Pavlo and Java, in Kiev. Since this is an older classic