La cruz de hierro

From Author Wars - https://authorwars.com/publications/la-cruz-de-hierro-668832.html

Overview:

Title: La cruz de hierro
Author: Pako Domínguez
Year: 2016
Publisher: Dlorean
Price: €6.95
Pages: 100
Binding: Trade Paperback
Type: Collection
Title Reference: La cruz de hierro
Notes:
- Data from La Tercera Fundación as of 2018-06-06; price from Cyberdark.
- Published without an ISBN.
- It is not clear whether all of these pirate stories contain speculative elements; however, the publisher's description does mention sea serpents in at least one.