The Anti-Magic Field

After meeting Torbin we were tasked by him to seek out the reason for a magical disturbance that was perplexing the mages on Arcane Alley in order to gain the support of Archmage Vendys

You awaken at Cora's house again after a few days of downtime and after a hearty meal of bacon and toast decide to sell some unneeded items at the marketplace then head into the city. The Captain of the Guards has taken a disliking to Amon, and so a gate toll is demanded but otherwise you enter without issue. You are immediately greeted by an Air Genasi called Fiona who welcomes you to the city and offers to direct you to wherever you need to go... for a few coin of course. She shows you The Slums, the Guild House and Arcane Alley before taking you to the Sapphire Shores tavern. Sapphire Shores is a large place spanning 4 floors and is very well filled with lively patrons. You see two Goliaths flanking a dais upon which a dwarf sits pouring over some papers. You approached the dwarf and discover that he is Torbin, the man who sent you the letter. Torbin greets you kindly and answers some of your questions. He tells you that he is doing all he can to prevent war between Porion and the Elven Commonwealth by preventing the cutting down of the Elven Forest by the Emerald Vale Logging Company. He emphasises the need for allies and tasks you with making friends of the Mages of Arcane Alley. He gives a specific warning to Smodi to keep the Mages on-side. He tells you of a crypt south of the city which is affecting the Mage's magic. As it is one of the rare problems that the Mages cannot solve themselves he tasks you with entering the crypt, finding the source of the magic interference and to return to Archmage Vendys in Arcane Alley when you are done. You enter the crypt, finding Gnomish writing on a few of the walls. Unable to touch the arcane or any source of magic, you encounter skeletons, a fire trap, a couple of daggers on the floor and finally a large creature that loosely resembles a crab with a glowing stone in its chest. After a difficult battle you finally defeat the creature, the stone stops glowing and your ability to use magic returns. You take the stone and a few nearby treasures and exit the crypt, night has nearly fallen and you walk back towards the city...