Freakohollik
First Post
... or 3) They were playing Return to the TOH as part of a long-running campaign, explored the tomb very slowly and carefully, and did thorough research on the protagonist (including spells such as contact other place and legend lore) before taking on the demi-lich.
That's what happened with my players. They didn't need to read the module beforehand to know that the ToH has a "reputation". After having a rough time with the necromancer settlement outside the ToH, they knew that they had to approach the actual tomb in the most cautious way possible - which involved literally weeks of prep and spell-casting.
Going by the original module's text, divining shouldn't work. The first sentence in the original module is
S1 said:The legend of the tomb is an old story with many parts, some of which may be lost or obscured. Characters attempting to glean special information by consulting sages or through legend lore spells may still have difficulty obtaining as much background as they desire, for the scraps of information are often minimal and mystical.
The same text should mostly apply to the return to module. The exceptions would be the original party's log and the one armed guy that joins you. I can't remember how much the log warns you about, but I remember that the party in the log ran away from the skull after getting their souls eaten. Never manged to hurt the skull.