From the private notes of Dr. Wade Bow, K1 Dig Site 4, date unknown:

the hallucinations have become persistent my headless friend now appears during the daytime I see him out of the corner of my eye but when I turn my head he disappears

Ive also started losing time I will blink and suddenly Im in a strange location several hours later Im not sure if it is short term memory loss or a fugue state yesterday I woke up in the equipment locker standing in front of the plasma cutters several were already missing

the shadow was standing right next to me

I think I know what he wants