"% IN LAIR indicates the chance of encountering the monster in question where it domiciles and stores its treasure (if any). If a monster encountered is not in its lair it will not have any treasure unless it carries 'individual' treasure or some form of magic. Whether or not an encounter is occurring in the monster's lair might be totally unknown to the person or persons involved until after the outcome of the encounter is resolved."
"Outdoors in Blackmoor
Travel from one perilous adventure to another in a neighboring Castle can result in a great deal of frustration of the players, or al least confusion, as the road is always populated by evil creatures. After all it is supposed to be some sort of civilization and it must have some form of communications, if for no other reason than to move all the treasure around from Castle to Castle. With a little work, the Outdoor adventures can be enjoyable, and the format of an overall campaign, can lead to the pacification of area over time.
To reflect the above. the Judge should grid off the map into Sectors, also called Hexes or Squares. Each of these hexes will contain some adventures which may range from a Monster holed up in a small cave to an abandoned Castle full of Orcs. A chart is provided for laying out the basics of the area and can be modified to suit the individual taste of the Judge and his eagerness to lay out all the needed work. Each square should contain in average of say, two encounters (assuming 10 miles by 10 miles), determined by rolling 1 six-sided dice (upon a roll of six would mean that there are no adventures in the square). This will determine how many encounters live in the area.
For each encounter, consult the Encounter Matrix for the type of creature that lives at each spot. Whenever there is an encounter in the area, in the future, il will be restricted to one of those already present (see advanced method for other results). If there are four encounters you roll a four-sided die to determine which of the four has been found, all other details having already been worked out. The normal chances of the creature being in it's lair are worked out as they normally are. So if Encounter six has a 30% chance of being found in it's lair, then that percentage is used and the number of Creatures encountered will then be any number up to the total number present in the hex. Again to avoid confusion, you may wish to take the maximum number of creatures that is(sic) listed on the Monster Matrix to representative of the population in the hex for each encounter, given a plus or minus 10% to keep the players on their toes.
For each time that the creatures are found in their lairs, there will be a chance that a portion of them are out in the countryside. To determine this number, assume that 40% of the population is always in the camp and that up to 60% (10 - 60%) are always outside of the camp. Roll a die again and see how many miles (1 - 6 miles) they are away from the camp. On a roll of six. the creatures outside of camp are in two equal sized groups and you would roll again to determine how many miles away they are.
Note: Whenever sixes appear again, divide that proportion of the creatures in half again and roll for their positions. In this way, In original group of creatures starting at, say, 50 strong could first divide into two groups of 25, then 12, then 6, etc.. . ." -First Fantasy Campaign
"TREASURE TYPE refers to the table which shows the parameters for various types of valuables which the monster in question might possess. If individual treasure is indicated, each individual monster of that type will carry, or possibly carry, the treasure shown. Otherwise, treasures are only found in the lairs of monsters, as explained above." - Monster Manual 1st edition
"'But I rolled it!' A common mistake most DMs make is to rely too much on random die rolls. An entire evening can be spoiled if an unplanned wilderness encounter on the way to the dungeon goes badly for the party. The DM must use good judgment in addition to random tables. Encounters should be scaled to the strength of the party and should be in harmony with the theme of the adventure." - Expert Rulebook, Page X59
"Encounters: A 'monster' can be a kindly wizard or a crazed dwarf, a friendly brass dragon or a malicious manticore. Such are the possibilities of encounters in dungeon, wilderness, or town. Chance meetings are known as encounters with wandering monsters. Finding a creature where it has been placed by the referee is usually referred to as a set encounter.
Wandering monsters can be totally random or pre-planned. A party wandering in the woods outdoors or on a deserted maze in the dungeon might run into nearly any sort of monster. If the woods were the home of a tribe of centaurs, or the dungeon level one constructed by a band of orcs, certain prescribed encounters would randomly occur, however. At prescribed intervals, your DM will generate a random number to find if any meeting with a wandering monster occurs. . . .
Set encounters are meetings with monsters placed by your DM. All such encounters will be in, or near, the monster's (or monsters') lair; so, unlike encounters with wandering monsters, these incidents promise a fair chance for gain if the monster or monsters are successfully dealt with. A successful expedition usually is aimed at o particular monster or group of lairs discovered during previous excursions Note: a lair is wherever the monster dwells - even such places as a castle, guard house, temple or other construction." - Player's Handbook, 1st Edition, page 103
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