Mighty Jack and the Goblin King is the second book in the Mighty Jack series by Ben Hatke. This action-packed adventure follows the story of Jack and his friends as they face off against goblins and other mythical creatures. With its captivating storyline and vivid illustrations, this book is sure to keep readers of all ages entertained. The paperback format makes it easy to take this book on the go, allowing you to continue the adventure wherever you are. Whether you're a fan of the series or new to the world of Mighty Jack, this book is a must-read for any fantasy lover.