This is a rare and highly sought-after comic book from the Silver Age era, titled "Casper's Ghostland #21" featuring characters like Casper, Ghostly Trio, Nightmare, and Wendy. The publication year of this vintage comic book is 1964 and it is a single issue format. This comic belongs to the series "Casper And Spooky" and was published by Harvey Comics.

Additionally, this comic book is a valuable collectible for fans of US Comics and the Comic Books & Memorabilia category. However, we would like to clarify that we cannot disclose any information about the condition of this item. Thank you for your interest in this rare and highly sought-after Casper comic book.