Treasures of the stolen mummy (issue 4), Whitehorn G.

Weylet is very proud of his aunt Matilda. Egyptologist scientist, she made an amazing discovery! Having studied the recently found mummy, Matilda realized that she could lead archaeologists to the tomb of Queen Nefertiti herself! Ah, how many treasures are hidden there! But something unimaginable happened: one night the mummy disappeared from the museum! Thieves did not leave a single evidence! What does this mean? Did the mummy run away itself? Violet knows: this cannot be! So, it is time for her and her friends to take up a new investigation and find criminals. But will it be so easy to do?

The fourth book in the series.