Sensational She-Hulk #20 is a Marvel comic book that was published in 1990. It was written and illustrated by John Byrne, who is known for his work on a number of classic Marvel titles.

In this issue, the She-Hulk is hired by a wealthy man to investigate the mysterious disappearance of his son. As she delves deeper into the case, She-Hulk discovers a strange underground laboratory where a group of scientists have been conducting experiments on humans and animals.

She-Hulk also learns that the missing son has been transformed into a horrific monster, and she must use all of her strength and cunning to stop him from causing destruction in the city.

Detective Comics #394 is a DC comic book that was published in 1969. It features Batman and was written by Frank Robbins with art by Irv Novick and Neal Adams.

In this issue, Batman investigates a series of crimes committed by a mysterious villain known only as the Spook. The Spook uses a range of unusual gadgets and tricks to carry out his crimes, leaving clues that confound the Dark Knight.

As Batman tries to unravel the mystery of the Spook’s identity, he must also contend with the fact that he is being stalked by a beautiful but deadly assassin named Silk. Silk is hired by a criminal mastermind named Maxie Zeus, who seeks to eliminate the Caped Crusader once and for all.