The PCs had ample warning that continuing on their present course would probably get them all killed. Hell, their contact said, “No, no, no — don’t do that! All of you will be killed. No, seriously.” The writing was on the wall.
They went there anyway. Now, halfway through what is clearly a losing battle, they have no options for retreat. They are, in short, headed for the dreaded TPK.
If you let them all get killed, turn to page 17. To fudge a couple of rolls and give them a slim chance of survival, turn to page 41. To tweak the encounter slightly without fudging any rolls, turn to page 67. If you want reinforcements to arrive and completely save their bacon, turn to page 73.
Which page do you turn to?