Book excerpt: Seatbelts, everyone! Ms. Frizzle's class learns all about the role of technology on farms! Wanda proudly hosts this year's school harvest feast, but she was so busy promoting it she forget to get the food! Luckily, Ralphie happens to know of a farm that grows the finest produce around, but there's a problem: he thinks it's haunted! There are tractors driven by ghosts, plants that climb walls, and so many robots! Could the spooky discoveries actually be helping the farm?