Is this a good idea for a possible novel?

Brad and Jasmine are both 13 year olds who live in Chicago, Illinois and attend Alexander Graham Bell School. Soon their history class takes a field trip to the Museum of Contemporary Art. When they get seperated from their group, they wander around the museum. They bump into their math teacher Mr. Leapis, who transforms into a bull and attacks them. They get saved by their history teacher Mr. Hedge and he takes them away from the museum, who explains to them that Mr. Leapis was actually the Apis bull. He leaves the class with the assistant principle Mr. Chamberlain. He takes them to the Trump International Hotel and Tower to room 645. When they enter the room, it magically turns into three times it's original size with an indoor pool and more. He tells them that his real name is Astiel and for them to call him this. He also reveals to them that he is the "link" to the god Heka. A "link" is the most powerful person in a family that is descended from an Egyptian god. Astiel says that the Egyptian gods must have a link unless they want to be trapped into the Duat. The Egyptian gods that have a link are allowed to roam the earth in a lesser, more human form of themselves. Jasmine is revealed to be the link of Isis and Brad is the link of an unknown god but a god that is as powerful as the main gods. Astiel also says that the Egyptian gods Isis, Osiris, Horus, Set and Nephthys all created a lair in which they all live that is on the top of Willis Tower. Astiel takes them to this lair (the Lair of the Gods). Horus tells them that his link Kevin has been captured by the god Maahes. He tells Brad, Jasmine, and Astiel that they have to save him before the summer solstice, which is in twelve days. Along the way, it is revealed that Brad is the link to the god Ra, and that Kevin was captured in order to give power to the god of chaos Apep. It is revealed that Brad must stop Apep before he is freed but he needs the help of the five links to the main Egytian gods, meaning he has to find the link to Osiris, Set and Nephthys.