The website for Yesterday boasts of 4 different endings. I quote from the game's website:
This is the starting point of a brand new adventure from Pendulo Studios, which will drive you into a dark story full of twists and turning points, and give you the chance to choose between 4 different endings!
I've only seen three (listed below), and how to arrive at them all seemed very obvious. At the very end of the game, I was presented with a choice as to which character would act in the end:
I choose Cooper and he tosses Henry in the pit. John, Cooper, and Pauline bury the temple and leave.
I choose John and he brands Henry's hand so that he'll be forever marked. John and Pauline bury the temple and leave.
I choose Henry and he convinces John to pull him up, then stabs John and pushes him into the pit. Henry buries the temple and drags off Pauline's body.
Is there really a fourth ending, and if so, how do I achieve it?