I'd recommend doing the Serpent Temple first to strengthen your Sun spells for use against the mantraps.
Otherwise, you might try running (very fast) past them to the castle moat, turning left, following the moat under the first blockhouse, and checking the trail on the east side leading to the graveyard. You'll then need to run back past the mantraps again to return to Ishad N'ha. Brrrrr! Good luck!
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Rick
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