Audio Diary #15 – “Lamb’s Operation”

Located in the smugglers’ hideout, which is above the Green Grocery, past a turret and through a steel door. Most any walkway on the 2nd or 3rd levels of Plaza Hedone will lead you to this area eventually.

Audio Diary #16 – “My Name is Eleanor”

Last bunk bed in the group sleeping quarters of the Little Sisters Orphanage.

Audio Diary #17 – “Shackled to the Great Chain”

Enter the first part of Pump Control Substation #5. On the upper level, in the northwestern corner, is a locked office. Hack the door through the grate and grab the audio diary.

Audio Diary #18 – “Guidance of Lamb”

At the candle altar, before heading into the “Temple of Lamb.” It’s underneath the paintings of the first BioShock protagonist’s hands.

Audio Diary #19 – “Therapy with Grace 2”

In the last hallway before Father Wales’s church, there’s a door on your left leading to Sofia Lamb’s office and a Power to the People weapon upgrade station. The audio diary is tucked in a filing cabinet.

Audio Diary #20 – “The Creed of the Faithful”

At the main altar of Father Wales’s church, beneath the large painting of the butterfly-headed woman. Grab before the place floods.