Miss Murchison deliberately leaves a paragraph out of an urgent affidavit so Mr. Urquhart will order her to stay late and retype it. Once Mr. Pond leaves for the Tube, she climbs a wobbly revolving chair to reach the Wrayburn deed box, only to find it moved to the bottom of a new stack. Then Mr. Pond returns for a forgotten jar of caviar, and she claims she was chasing a mouse while praying her skeleton keys are not lying in plain view on her desk.

Spooked again by boys chasing a ball and a possible policeman outside the unblinded window, she carries the box into Urquhart’s private office and, following Blindfold Bill’s advice not to hurry, opens it. There is no will inside. Instead she finds a list of securities, a power of attorney from January 1925, and a deed of trust from July 1920 making Urquhart sole trustee of Mrs. Wrayburn’s entire property, attached to a letter from the old woman asking him to take charge of everything.

• The pile of deed boxes: Universal Bone Trust, Trubody Limited, Flatsby and Cotton, Sir J. Penkridge, and Bodgers
• Mr. Pond lamenting that typewriters make clerks careless and promising to fetch a kitten
• The charwoman Mrs. Hodges noticing she had not heard the typewriter going
• Rosanna Wrayburn’s 1920 letter, written at over 80, saying she might one day become feeble in her head
• Miss Murchison heading to Soho for supper, humming the Whitechapel hymn