Summer is here, but Wiglaf and his friends are not getting a relaxing vacation. The greedy headmaster of Dragon Slayers' Academy, Mordred, has decided to turn a profit by opening Camp Dragononka. Instead of enjoying the medieval sun, the students are stuck dealing with bizarre camp activities and a setting that feels incredibly suspicious. Things go from bad to worse when strange events start interrupting their days. Wiglaf's energetic little brother is absolutely convinced that ghosts are haunting the campgrounds. The boys realize that someone, or perhaps something, is trying to scare them away for good. Now, Wiglaf and his loyal friends must uncover the truth behind the spooky sightings while surviving Mordred's ridiculous money-making schemes. They will need to work together to figure out who is trying to ruin their summer before the entire camp is forced to shut down.