A constant among RPGs is the idea of a thief character that helps get the adventuring party through locked doors and past dangerous traps or acquires the critical piece of information by picking the pocket of an opponent. DragonQuest has their own take with the Spy and Thief Skill and this is my look at the ins and outs of the skill.
Though written up in one section of the rules, Spy and Thief are learned and advanced as two separate skills. The description in the DragonQuest rules says,
The spy and the thief practice their trades covertly, in order to avail themselves of the well-guarded wealth of the powerful.