General tips
Go and meet Japp
Inspect the crime scene
Inspect Mrs. Ascher's bedroom
Inspect the tobacco shop's surroundings
Question Mary Drower
Question Franz Ascher
Compare the new letter with the first one
Go to Scotland Yard and inform Japp about the B letter
Examine the crime scene
Identify the victim
Go to the Ginger Cat and inspect Betty's workplace
Go to Betty's house at No.22 on the High Street and question Megan
Examine Betty's bedroom
Listen to Betty's record
Continue questioning Megan
Question Donald Fraser
Call Scotland Yard and compare the new letter with the other letters from ABC
Question the victim's brother
Inspect the lounge
Observe everybody
Question Lady Clarke
Inspect the mansion
Inspect the mansion's surroundings
Talk to Donald Fraser and question Thora Grey
Compare the new letter with the other letters from ABC
Decipher and read the burned documents
Question Mrs Marbury
Search Cust's room
Question Cust
Prepare for meeting
Reveal murderer's identity
Achievements / Trophies