The shopkeep, a female gnome (https://i.pinimg.com/originals/03/8d/ba/038dba6cfd18251fd0e9101e5a7ac1d1.jpg) who proudly wears golden Guild crest as cloak clasp replies; "Most these goods are from dungeon located in Rivertown from the north which is one day boatride away. A fishermen town originally but has grown town since their dungeon showed up and started expand their business as their dungeon grew. Their dungeon is known for variety of weird items it produces. One floor specifically is popular and that's the toy factory level with toy constructs as foes and toy related traps which are non-fatal kind. But also heard it can get seriously creepy and deadly in lower levels with some killer clowns in circus and what not. In regarding harvesting mana, you really cannot harvest it albeit spellcasters who reach the core get fully recharged with their mana. But there are objects which can be imbued further with dungeon mana, store it in there until spend.<br/><br/>"But if question was about harvesting mana for my merchandise, only specific guild trained artisans can imbue the items with mana so their weird enchantments can last permanently. Naturally I know such artisans and can recommend whom go to regarding any items you purchase from me."