Resumen: Tony Baker is accused of hacking into his
school's computer system. His mum gets
a letter from the Town Hall asking for a lot
of money, but Tony and his friend Emma discover that the writer of the letter doesn't
exist. Later, Emma gets an anonymous letter saying, "You're next!" Who is the mysterious
hacker and who is sending these letters?
Written by a teenager for teenagers, this
exciting story is full of surprises.