The first book, The Ecology of Arbei Woodpecker, is in Yarmo Hot Spring, a stone landscape halfway to the open-air hot spring behind Hongye Pavilion.
The second book "The Adventures of Harz Boys"? On the map leading to the Red Lotus Pagoda, there is an area with stone pillars in the northeast.
The third book "3 1 cypress" is in the wooden bucket on the third floor of St. Heim Gate.