A wonderment; a dazzle; Gemstones; a batik; a porphyry;
a collage; a sparkle; In the Glade; a brew; if she wants something really different, she could call it a
burgoo. Oh! I just remembered--why don't you try, or have her try, Marty's link to a collection of collective nouns?
Here, to save you the trouble:
http://www.ojohaven.com/collectives/

If the stories are all the same kind, that could make a difference. For ex., if they are about snakes, it could be called a Hissing.