The Black Phone
James Lovegrove
Seb and Frankie are unlikely friends who run an amateur detective agency. When the rich and gorgeous new girl at school becomes the victim of vicious cyber-bullying, she comes to them for help. Can Seb and Frankie find out who’s responsible? An exciting mystery, with all the clues there for the reader – will you solve it first?
Reviews

It was a very great story
Princess Cilla Jumpsuit 17.08.2021

I would recommend this book to 7and up.
Princess Iggy Rollerskate 16.08.2019