* Condition: The condition of the books is one of the most important factors in determining their value. Books that are in good condition, with minimal damage or wear, are generally worth more than books that are in poor condition.
* Rarity: The rarity of the series is also a key factor. Some comic book series are more rare than others, and this can affect their value. For example, a series that was only printed in a limited number of copies may be worth more than a series that was widely distributed.
* Market demand: The current market demand for comic books can also affect their value. If there is a high demand for a particular series, this can drive up the price. Conversely, if there is less demand for a series, this can cause the price to drop.
Based on these factors, it is difficult to provide an exact estimate of the value of your comic book series. However, if the books are in good condition, and they are a rare series, they could potentially be worth a significant amount of money. To get a more accurate estimate, you may want to consider getting your books appraised by a professional.