Castle Swimmer: Volume 4

Descend into the shadowy ocean depths with Kappa and Siren in the thrilling fourth installment of the hit Webtoon series, Castle Swimmer. This captivating graphic novel collects episodes 66-86, continuing the epic saga of magic, destiny, and unwavering connection.

• Follow Kappa and Siren as they uncover harrowing truths about their destinies.
• Siren ventures into the ocean depths with new companions Pim and Pagoon, seeking a cure for his curse and facing terrifying creatures.
• Kappa battles the great demigod crab and learns to harness his magical powers.
• Experience the deep connection between Kappa and Siren, even when separated.
• Features a beautiful graphic novel format collecting episodes 66-86 of the popular Webtoon series.

• Author: Wendy Martin Ph.D.
• Publisher: Random House Inc
• Publication Date: September 8, 2026
• Language: English
• Print Length: 288 pages
• Binding: Paperback
• Dimensions: 17.86 x 1.75 x 22.76 cm
• Weight: 720 g
• ISBN-10: 0593835921
• ISBN-13: 978-0593835920
• Part of: Castle Swimmer series (Book 4 of 4)
• EAN: 9780593835920
• Release Date: 8 Sep 2026

Join Kappa and Siren as they bravely push forward into the unknown and face more mythical obstacles in this captivating continuation of the Castle Swimmer saga.