The sticky note says connect the dots... The only dots to appear so far are in the storybook.

• We have ourselves a book cipher.

The letters are acronyms relating to the story titles. The numbers refer to the words in the italicized portions of the stories.

• MP 10 = Mère Petitpas and Her Violet Absinthe → Purple
• GG 2 = Graveyard Guardians / second word → Gray
• GVQ 16 = Grave of the Voodoo Queen → Crimson
• PBL 14 = The Pirage Brothers Lafitte and the Baratarians → Turquoise

The note says to connect purple dots to gray dots and crimson dots to turquoise dots.

• On page 7, connecting crimson to turquoise = MBI
• On page 9, connecting purple to gray = ZO

The laptop password is:

• ZOMBI