I need some suggestions for a monster

[northbrb]

i will be running a game soon and i want the players to come across a hoard of treasure, the idea will be that after taking some of the treasure the monster that guards it naturally knows how much he has and if any one takes any of it, on top of that can sense his treasure and knows what direction it has gone and and how far away it is and begins hunting it down and hunting down the ones who have taken it.

what i would like to know is if there is a way for me to do this with existing material or if i need to make my own monster, the characters are level 5

[carborundum]

Well, it knows how much there is and where because you say so. That's the easy bit. Now a cool monster!
Take the stats for a demon, devil, elemental, golem... and reskin it to fox your players. Piratecat on enworld made a coin golem using the basic stats from an iron golem. Instead of poison gas it sprayed coins! You could use do something similar, maybe with a Flesh Golem or some sort of swarm - just describing it as the hoard itself animating to attack or whatever.

Alternatively, Spectators make great guardians!

[bigkilla]

I know its nothing spectacular but how about combine two things that love the lootz!! Dwarf Half Dragon.

HORDE GUARDIAN:

HORDE GUARDIAN CR 7
Male Dwarf Barbarian (Invulnerable Rager) 6
TN Medium Dragon ((Humanoid))
Init +3; Senses Darkvision (60 feet), Low-Light Vision; Perception +8
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DEFENSE
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AC 21, touch 13, flat-footed 18 (+4 armor, +3 Dex, +4 natural)
hp 84 (6d12+31)
Fort +11, Ref +6, Will +4
Defensive Abilities Defensive Training; DR 3/-, 6/lethal; Immune acid, paralysis, sleep; Resist cold 1, Extreme Endurance (Cold)
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OFFENSE
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Spd 30 ft., Flying (60 feet, Average)
Melee +1 Greataxe +12/+7 (1d12+8) and
Bite (Half-Dragon Template) +6 (1d6+2) and
Claw x2 (Half-Dragon Template) +6 x2 (1d4+2) and
Unarmed Strike +11/+6 (1d3+5)
Special Attacks Breath Weapon (DC 15), Scent
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STATISTICS
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Str 21, Dex 16, Con 20, Int 12, Wis 12, Cha 11
Base Atk +6/+1; CMB +11; CMD 24
Feats Flyby Attack, Power Attack +4/-2, Toughness +6
Skills Acrobatics +9, Climb +11, Escape Artist +1, Fly +10, Intimidate +8, Knowledge: Nature +7, Linguistics +4, Perception +8, Ride +1, Stealth +1, Survival +6, Swim +8
Languages Draconic, Dwarven
SQ Boasting Taunt (Ex), Fast Movement (Ex), Greed, Hardy, Hatred, Rage (19 rounds/day) (Ex), Reckless Abandon (+/-2) (Ex), Slow and Steady, Stability, Stonecunning
Combat Gear +1 Greataxe, Chain Shirt; Other Gear Cloak of Resistance, +1, Potion of Bull's Strength, Potion of Cure Moderate Wounds
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SPECIAL ABILITIES
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Boasting Taunt (Ex) Intimidate check while raging also shakes target.
Breath Weapon (1/day) (DC 15) (Su) 1/day, Breath Weapon deals 6d6 Acid damage, DC 15.
Damage Reduction (3/-) You have Damage Reduction against all attacks.
Damage Reduction (6/lethal) You have Damage Reduction against non-lethal damage
Damage Resistance, Cold (1) You have the specified Damage Resistance against Cold attacks.
Darkvision (60 feet) You can see in the dark (black and white vision only).
Defensive Training +4 dodge bonus to AC against monsters of the Giant type.
Extreme Endurance: Cold (Ex) At 3rd level, the invulnerable rager is inured to either hot or cold climate effects (choose one) as if using endure elements. In addition, the barbarian gains 1 point of fire or cold resistance for every three levels beyond 3rd. This ability replace
Fast Movement (Ex) +10 feet to speed, unless heavily loaded.
Flyby Attack You can take a standard action during your move action while flying.
Flying (60 feet, Average) You can fly!
Greed +2 to Appraise checks to determine the price of nonmagical goods that contain precious metals or gemstones.
Hardy +2 racial bonus to Poison, Spells and Spell-Like effects.
Hatred +1 racial bonus to attacks against Orcs and Goblinoids.
Immunity to Acid You are immune to acid damage.
Immunity to Paralysis You are immune to paralysis.
Immunity to Sleep You are immune to sleep effects.
Low-Light Vision See twice as far as a human in low light, distinguishing color and detail.
Power Attack +4/-2 You can subtract from your attack roll to add to your damage.
Rage (19 rounds/day) (Ex) +4 Str, +4 Con, +2 to Will saves, -2 to AC when enraged.
Reckless Abandon (+/-2) (Ex) Trade AC penalty for to hit bonus while raging.
Scent (Ex) While raging, you gain the scent ability.
Slow and Steady Your base speed is never modified by encumbrance.
Stability +4 to avoid being bull rushed or tripped while standing.
Stonecunning +2 bonus to Search vs unusual stonework. Free check within 10 feet.

[Kalyth]

Ever seen the movie "Fallen"?

Make the monster a spirit that pursues those that steal its treasure by possessing animals and humaniods. The spirit would transfer from one body to the other via physical contact. So each time the party incountered it you could always play on the threat that it was possessing one of the PCs. It will continue to hound them until they return all of the stolen treasure.

Another Twist it has to be the original treasure. Not just any 100gps but the exact same one hundered gold coins that were taken.

Hey i could see an entire campainge worked around trying to retreive all of the loot that was stolen and then sold off.

[Are]

Anything that can cast Locate Object would work. My personal choice would be a Dragon, just because Dragons are cool :)