Where are the Hidden Sunken Scrolls and Sardinium?

The video below will show you the hidden location of every hidden Sunken Scroll and Sardinium.

Tentakeel Outpost (Sector 1)

Overworld:

Sunken Scroll - 3:21; Sardinium - 2:37

Level 1:

Sunken Scroll - 4:19; Sardinium - 4:04

Level 2:

Sunken Scroll - 4:49; Sardinium - 5:16

Level 3:

Sunken Scroll - 5:48; Sardinium - 5:35

Boss Sardinium 6:28

Suction Cup Lookout (Sector 2)

Overworld:

Sunken Scroll - 6:46; Sardinium - 6:34

Level 4:

Sunken Scroll - 7:33; Sardinium - 7:16

Level 5:

Sunken Scroll - 8:09; Sardinium - 7:47

Level 6:

Sunken Scroll - 8:50; Sardinium - 8:29

Level 7:

Sunken Scroll - 9:47; Sardinium - 9:29

Level 8:

Sunken Scroll - 10:28; Sardinium - 10:07

Level 9:

Sunken Scroll - 10:55; Sardinium - 11:15

Boss Sardinium - 11:38

Beaker's Depot (Sector 3)

Overworld:

Sunken Scroll - 12:18; Sardinium - 12:01

Level 10:

Sunken Scroll - 13:16; Sardinium - 13:02

Level 11:

Sunken Scroll - 13:49; Sardinium - 14:18

Level 12:

Sunken Scroll - 14:44; Sardinium - 14:38

Level 13:

Sunken Scroll - 15:36; Sardinium - 15:13

Level 14:

Sunken Scroll - 15:57; Sardinium - 16:09

Level 15:

Sunken Scroll - 16:43; Sardinium - 16:31

Boss Sardinium - 16:56

Slimeskin Garrison (Sector 4)

Overworld:

Sunken Scroll - 17:36; Sardinium - 17:16

Level 16:

Sunken Scroll - 18:45; Sardinium - 18:30

Level 17:

Sunken Scroll - 19:09; Sardinium - 19:34

Level 18:

Sunken Scroll - 19:44; Sardinium - 20:18

Level 19:

Sunken Scroll - 20:52; Sardinium - 21:45

Level 20:

Sunken Scroll - 22:53; Sardinium - 22:26

Level 21:

Sunken Scroll - 23:21; Sardinium - 23:34

Boss Sardinium - 23:59

Cephalon HQ (Sector 5)

Overworld:

Sunken Scroll - 24:47; Sardinium - 24:24

Level 22:

Sunken Scroll - 26:50; Sardinium - 26:38

Level 23:

Sunken Scroll - 27:40; Sardinium - 27:29

Level 24:

Sunken Scroll - 28:27; Sardinium - 28:43

Level 25:

Sunken Scroll - 29:02; Sardinium - 29:38

Level 26:

Sunken Scroll - 29:58; Sardinium - 29:43

Level 27:

Sunken Scroll - 30:44; Sardinium - 30:30

Boss Sardinium - 31:13