Cozy Ghost Adventure Coloring Page

Create an original whimsical storybook line art image for Northstar AI featuring two original friendly ghosts mapping a moonlit library. Objective: Create a gentle narrative printable that feels mysterious but not frightening. Composition: Ghosts in the center, tall bookcases at both sides and one large map across the foreground. Lighting and material treatment: Pure black line work on a clean white ground with uniform contrast and no tonal shading. Typography: do not include any words, letters, numbers or signatures. Use a deliberate hierarchy, clean edges, realistic shadows where appropriate, and enough negative space for editorial reuse. Output a polished 4:5 vertical composition unless the user specifies another ratio. Required constraints: No horror gore, copied ghosts, franchise props, gray shading or tiny book titles. Do not add watermarks, fake certifications, unreadable filler text, duplicated objects, distorted anatomy, or unrequested logos. Preserve any uploaded product, person, or interface as the identity reference rather than redesigning it.