The Will and the Inheritance
The Cuckoo's CallingLula’s handwritten will expresses a newly formed family bond and becomes the secret that motivates her killer.
increasing
Bearing strength in each event
decreasing
The Incomplete Search

A Document in the Making
Writing in the car
Kieran sees Lula writing on blue paper after she leaves her mother’s home. The police later find no will, and the paper’s disappearance initially seems like a detail too vague to pursue.
A private purpose
The blue sheet links the day’s journey to Lula’s urgent meeting arrangements. Her movements suggest that the paper mattered enough to carry discreetly and protect from anyone monitoring her ordinary phone.
The Witnessed Will

Rochelle’s Witness
A hurried signature
Lula takes Rochelle into a changing cubicle at Vashti and asks someone to come to her flat later. The visit is short, but it gives Lula privacy and an opportunity to have Rochelle witness a handwritten will.
An unexpected beneficiary
The document leaves Lula’s estate to Jonah, her newly discovered half-brother. The will is not simply a financial instrument; it records Lula’s effort to recognize a family connection she has only just begun to build.
The Hidden Testament

A Will in the Wardrobe
Kept from discovery
Strike locates Lula’s white Cashile handbag among new bags in Yvette’s wardrobe and finds the folded blue paper beneath the detachable lining. Its hiding place explains why a thorough search of the ordinary compartments did not reveal it.
Consequences for the case
The will displaces John as the expected heir and supplies the missing motive behind his actions. It also confirms Rochelle’s role as witness and turns a private act of recognition into decisive evidence.
During the afternoon of January 7
During Lula's brief stop at Vashti on January 7
During Strike's visit to Yvette's home near the ending