The Word Is Murder

A woman crosses a London street.
It is just after 11am on a bright spring morning, and Diana Cowper is going into a funeral parlour to organise her own service.
A mere six hours later she is dead, strangled with a crimson curtain cord in her own home.
Did she know she was going to die?
Did she recognise her killer?
Are the two events even related? Because nobody arranges their own funeral, and the gets killed the same day - do they?
Enter Daniel Hwthorne, a detective with a genius for solving crimes and an ability to hold his secrets very close.
With him is his writing partner, Anthony Horowitz. Together they will set out to solve this most puzzling of mysteries.
What neither of them know is that they are about to embark on a dark and dangerous journey where the twists and turns are as unexpected as they are bloody...