I loved Brisbane! I'm in NY so our weather (and time) is opposite yours. It was 70s and 80s while I was there and I flew back into NY to 30 degree weather, it sucked! When I was there we went to the Gold Coast and Kings Coast and the koala sanctuary! I got to hold a koala and feed kangaroos! Its one of the top five moments of my life lol.
If Jack messes with Del,he might get Haakon hot on his tail, though he might be able to snoop around about the Hanna/Delanei secret.
Demeter could be led astray in her fragile state, just gotta figure out how to get them together. She doesn't have too many secrets.