Oogie's Muse (Jack Skellington x Reader)

PART ONE:
Jack Skellington, the most eligible bachelor in Halloween Town, is beckoned to the lair of Oogie Boogie for a matter of upmost importance. When he arrives, expecting to be challenged by Boogie for the title of Pumpkin King, Boogie unexpectedly shows Jack his most prized possession. His muse.
A girl, nicknamed Spooky by the citizens of Halloween Town, who has been abducted from her home on Earth and kept in a hidden cell for years now. But, Boogie senses a rising threat among them - asking Jack to take his muse and protect her with his life. Jack hesitanly obliges - but not even he could control the feelings that will grow in the weeks passing. But, all is not well for Jack and (Y/n) when Jack finds out that he can no longer rule alone - he must find his Pumpkin Queen before Oogie Boogie takes back his throne, or (Y/n).

[NEW] PART TWO :
(Starts from Chapter 28)
(Y/n) has gone through the literal Hell and back to save her relationship with the Pumpkin King, death her constant companion as she struggled through countless trials and tribulations. Jack seems to have left her alone for good, but she still sees his feelings for her on the inside. She's determined not to give up on him, but its easier said than done when a mysterious stranger starts invading her dreams and leading her feelings for Jack astray. If that's not the worst that could happen, there's a deadly epidemic passing through Halloween Town that's only affecting certain monsters. Everyone thinks that this has to do with the disappearance of Lock, Shock and Barrel, henchmen of the deceased Oogie Boogie.
(Y/n) fights for the one she loves, but what happens when the one she loves...loves someone else?