Final answer:
An accurate answer to why Dancer and Harmony are sneaking Darrow into Yorkton requires context from the specific book or story being referred to, and cannot be provided without more information.
Step-by-step explanation:
The characters Dancer and Harmony are sneaking Darrow into Yorkton for a specific reason which is not explicitly mentioned in the question. To accurately answer, one needs to have information about the context, which is presumably from a book or a story. Without the context, it is impossible to provide a definitive answer. However, if this relates to a known literary work and contains recognizable characters or plot points, and if the person answering has knowledge of the work, they may be able to respond correctly.