Actually, now I'm trying to remember... what are the dice-rolling mechanics in this quest? I don't see them detailed in the OP, and I don't remember if they've been mentioned in any posts.
Generally with d100's and percentile skills, I default to assuming Call of Cthulhu style mechanics: roll your skill or under on a d100 (where the effective skill can be modified by bonuses or penalties); 1 is always a success, 100 is always a failure. In one of the other quests it was that the roll (plus any modifiers) had to be equal to or higher than a target difficulty. In another, the roll plus any modifiers (bonuses and penalties) had to be higher than 100.
In both of the latter, 100 is always a success, 1 is always a failure (opposite of CoC). I suspect they draw more from the d20 style of roll mechanics, for which 1 is a failure, 20 a success.
Generally with d100's and percentile skills, I default to assuming Call of Cthulhu style mechanics: roll your skill or under on a d100 (where the effective skill can be modified by bonuses or penalties); 1 is always a success, 100 is always a failure. In one of the other quests it was that the roll (plus any modifiers) had to be equal to or higher than a target difficulty. In another, the roll plus any modifiers (bonuses and penalties) had to be higher than 100.
In both of the latter, 100 is always a success, 1 is always a failure (opposite of CoC). I suspect they draw more from the d20 style of roll mechanics, for which 1 is a failure, 20 a success.