The world of hags and witchcraft is one often stewed over in pubs and taverns, in old history books, and in the folktales of yor. Sven has created an excellent adventure that takes everything about witches, hags, and those ancient tales and combined it into one kick-ass tale. With its deep connections to old Faerunian lore and varied story trail, you could play this adventure a number of times and it could always be different.
The piece that stands out to me in the begining is how Sven displays the stories of Olga and Yvonne parallel to each other - and this is something vary rare to be given both sympathetic villians and horrifying heroes all in one bundle. While Yvonne's tale tells of terror and power and oppression, Olga's is one of fear and exclusion and loneliness, making both characters truly three-dimensional.
Along with the useful section on speed-building villager NPCS - which I want more of, perhaps even a whole supplement on that ;) - and the beautifully made flow-charts of how the adventure can change and develop, Old Olga and Young Yvonne is a gritty and realistic adventure in the sense that no matter what happens, the characters will be affected and feel it deep down.
Comics, Clerics, & Controllers d20 Roll: Nat 20