Fri, Sep 20, 1968
When Lex Luthor turns up at the Daily Planet, he claims to be reformed and has been made science editor by Perry White. Jimmy Olsen sneaks into Luthor's laboratory in the Daily Planet and discovers a lightning machine but fooling around with it brings near disaster. Jimmy, however, continues to distrust Luthor and sees Luthor ostensibly robbing a bank vault, but Jimmy's intervention endangers Perry White.
Wed, Sep 11, 1968
While Clark and Lois are at Perry's farm for the annual Daily Planet picnic, a mysterious mist entity comes up from a well. The entity can create the appearance of being human from inhabiting clothing. It attacks Lois, but Superman saves her. Unfortunately, however it pursues Lois to Metropolis and repeatedly tries kidnapping her, so that she can become the queen of its subterranean kingdom. After Superman confronts it in the Superman museum as Superboy, Superman manages to capture it, and seals up the well.
Fri, Oct 25, 1968
In Scotland, while Clark Kent stays the night in an inn, Lois and Jimmy go to haunted Kilbane Castle. Two twins at the castle try scaring them away, fearing they'll discover their clan stole the castle from another clan. Their scare tactics cause a ghost from the other clan to be released. Superman manages to save Lois and Jimmy, arrest the twins, and assure the ghost that his clan will regain the castle.