Captain Holden is an unrevealed character in Arcane Adventures, though foreshadowed multiple times through a book, Theos' story at Sunrise Lagoon, ghost ship of Nebula, and his wanted poster. Through the information that is already revealed, Holden was a close companion to Theos and Randal. As well as attacking Arcane Government ships on sight as a way to oppose the Arcane Government's laws. Holden owned a grey sailboat named "Nebula", allowing Holden to act as a scout for Theos in search of Durza, The Dark Wizard, though the sailboat was capsized one day by White Eyes and supposedly killing Holden too.