Final answer:
The locations and states of Jack, Jill, the Doctor, and Mr. Mouse are ambiguous without context, as they relate to different stories and scenarios in literature.
Step-by-step explanation:
The question seems to center on characters from various stories, and their current locations or states. The scenarios described range from a character's children potentially freezing in the wilderness, an assault involving assassins, a futuristic nursery scene from a story like 'The Veldt' by Ray Bradbury, a mysterious presence known as Gil-Dong, a strange house and barefoot journey, the obsessive search for an object, an eerie absence in a wilderness setting, a silent passage into Camelot, the notion of 'dead souls' living through the living, and the tragic ending of a nightingale. These characters are in diverse predicaments, and their whereabouts or situations are tied to the narrative arcs within their stories. Without specific context to each character, it is impossible to give a definitive location or status for Jack, Jill, the Doctor, and Mr. Mouse; the answer could vary widely depending on the literary work or scenario referenced.