Sorry for the late response, lifes been abit hectic.
We wouldnt have this mess if the dastardly soft-hearted Jerbiton of ours didnt have that 'Always keeps a promise' mentality.
In short an aged npc hunter was severly mauled by a ferocious magic badger(monthy python had the black beast, we get badgers) dragged himself to the nearby village whom promptly dragged sent him to the capable hands of gentle gifted Sophia and all around nice gal with a knack for putting peoples extrails back to being their intrails. In short in their talks he is ever so grateful and she says basicly 'You can always count on me if you are in need!' ...at this point i noticed our dear SGs eye take on a faint shade of cunning delight and then promptly forgot about it.
Now, we've get to play farm boys, a pair of drunkards out in the woods and meeting that weird lady, a quartet of inapt bandits set to ambush that strange fellow with the red hat coming along the road. You get the point, at times the story to come gets a foreshadowing where we get to play out and sometimes cause hillarious mishaps that ends up at the council.
Now Mr Robert as it would being a friendly sort of geezer stayed abit at the covenant while recovering worked abit to 'make right!' and kinda being an old time soldier spent time with the grogs, whom sadly are privy to abit to much of the magis bantering having been educated in latin, before getting back home for good.
Long story short we are just 13-18 years out of gauntlet and we have this offensive Tremere fellow about a decade older looking to make a name for himself in the tribunal so in terms of sheer "power" not to much trouble, naturaly hes got a wolf familiar, dastardly creature that Stole(!) our virtous rabbit away from us(...ate more like, and technically it was free for all but we hunted that thing!) having heard us talk about 'learning the frakkin wolf a lesson when its about and about in that forest' (we quickly forgot about it, not wanting to cause any real trouble; revenge fantasy talk of magi...). A year later after the short incident with the badgers and the hurt hunter and a three session story involving nothing but a trip to Foix, a local robber faerie giving to the rich and stealing from the poor, or was that the other way around, and a long dead knight with a taste for getting revenge on his brother whom caused the death of him, his wife and their children theres going to be a session of returning home...
Enter forshadowing, sg is cunning about it and lets our buddy whom wasnt with us the session of the badger incident play this out. Abit of a horrified scowl can be heard and a few minutes later after some rolled dice and fighting talk a 'Thats insane! thats completly insane!' can be heard from our dear sg. Turns out if your about to be devoured by a magic wolf having taken a heavy wound and three lights and you roll 1,1,1,1, 6 on your last attempt to stab the sucker you stab it through the eye into the brain causing near instant death, which was not the expected result... then patching yourself up, severing the head of the ferocious creature and making way to end collapsing near the covenant doorstep from the back of your old tired horse leads to a soft hearted Jerbiton having to deal with her morals, she knows what the head of the creature you got is...
Here we get to cut back and return focus to the fellows on their way back home, stupid robber faeries realy do try the same trick twice, or so we tought and we are promptly lured to meet "the exiled true ruler of the realm(tm)!" ...oh dear, it was fun.
So there we are... we know the fellows going to come looking for the guy that left bits of himself all over his dead pet, we are all not so secretly pleased about the outcome we just got to try to figure out a way to thwart him. Sure the aegis will hold and we got a little secluded cave system with a regio in it that no outside magic seem to penetrate, atleast not easily... so we stick him in there; not the wisest of chooices since the labyrinth echoes and slowly robs you of sanity and sight while gladly leaving you with the ability to feel the surrounding space ten or so paces about much like eyes of the bat, a moaning husk of yourself eating fungi and lusting to wrestle living things to the ground and suck the marrow from them... we havent realy stuck our neck out to traverse this place, the spider guardians of the bloody place was a menance, we just go in, collect our two pawns of mentem, imaginem and perdo vis and then get the frack out for now but I have plans to investigate this place more; theres always another layer... wish we hadnt killed the spiders, their continued webbings would've given us some much needed animal vis if collected cunningly.
So currently we've stuck him in there, he can't be touched far as we know, but Sophia refuses to let him be in there for any length of time... we don't know if he's actively being looked for, the wolfs head been disposed off in the same place...
If he searches for one person via the map locatation spell and finds him nowhere, we dont know if he got one to find a dead person, sometimes I must say after all this time formulaic spells are written very rigidly at times; requring one to find living, one to find dead is however suddenly very very interesting to know if he has or no ^^
Changing the memories of robert would still leave the 'his blood was all over the carcass! let the quasitor investigate your(...not technically ours but if we wish to protect him) grog for any mind altering spell traces to hide you being behind this!'. If we are lucky, sticking him in the cave will just have him tought of dead... or maybe give us a season or two respite while he aquires a 'find dead body' spell to use instead. We don't know when he'll start looking for him for real... or if he'll ping across the years to see if the wolf slayer suddenly appears anew. Suppose he'll "scry" using forceless casting at first, if thats blocked I personaly would guess a obfuscation spell coming up and then an attempt to punch through our mild fourth magnitude aegis... and keeping a hunter forever inside it while the Tremere fellow grows stronger, ouch if he finds the truth later. Personaly I would've gone with a dead hunter and quick church burial to stop any real problems in our future but this altrustic gathering wont listen to my practical soloution 
Permanently removing memories... 'Your blood was the one on my beloved wolf, I don't care if you've forgotten it, I'll torture you for decades and then let you escpae only to catch you anew as you glimpse hope!'
One mortals life(and free will to do what he wishes with his life) vs the efforts of four(well... three...) magi to keep him somewhat safe that would endup costing them dearly down the road...