Piper was looking at a book of pictures with drawings from older countries. Imagine how surprised she was to find herself in one of the pictures. She meets a new friend, learns to tend sheep and, surprisingly, finds herself making bricks for the wall around King Gilgamesh's city of Uruk! Before returning to her own home, Piper plays a trick on a mean boss and creates something which she left behind in Mesopotamia. Between the River and the Wall is the first in a series of Piper Early Travels Books where Piper visits ancient civilizations. She makes friends and helps out along the way as she learns about people, customs, and cultures.