Classroom "ghost"

Author: Thomas Brezina
Publisher:
Publish Date: 2003-01-01
Features: In the classroom, a "ghostly" voice echoes, seemingly far and near; on the blackboard, a green, eerie face appears and disappears. The tranquil classroom is no longer tranquil. Who is the "ghost" calling? What are the expectations of the green-faced strange figure? Join the Tiger Team and embark on an adventure with us! This book consists of twenty units in total, with interconnected plots, and each unit presents a puzzle for you to solve.