Final answer:
Wayne's instruction for students to meet where their DHIs would be invisible is a detail that requires specific knowledge from a book or story. Without the context of the work, an accurate answer cannot be given.
Step-by-step explanation:
The location where Wayne tells the students to meet so their Digital Holographic Images (DHIs) would be invisible is likely from a specific book or story narrative. As this is a detail that pertains to the plot or setting within a work of fiction, one would have to refer to the text to give an accurate answer. Unfortunately, without the specific title or context of the work in which Wayne is a character, it is not possible to provide a correct answer. To determine this information, readers should look for the scene or chapter where the characters discuss their plan or the properties of the DHIs in the narrative.
This kind of question arises from a literary discussion, which falls under the subject of English, and is typically targeted towards middle school students who are often the audience for young adult novels that could feature such technological and adventurous elements.