Catherine Woodfine. The Mystery of the Precious Butterfly
The second novel in the series "Secrets of the Sinclair Department Store" "1909, London. It has been several months since Sophie worked at the luxurious Sinclair department store. Because she and her friends saved him from a horrific explosion planned by a mysterious criminal nicknamed Baron, even her former enemies treat the girl with respect. Sophie is preparing to celebrate her 15th birthday when she receives a strange letter addressed to her and Lil. The young Miss Veronica Whiteley has lost a priceless precious butterfly, which she must wear during the ball. The search for the brooch will take friends to the most unexpected places - from the Chinatown of London to the country residence of Lord Bucasl, who will not be who he pretends to be! And the search for lost jewelry will later turn into a chase for a dangerous criminal and a cold-blooded killer.
Tetralogy of mystery-adventure novels in England under King Edward VII (1901-1910)