The chaos monster

"Ten-year-old Kinjal knows something strange is going on. But he does not expect his dog, Thums-up, to disappear before his eyes in the middle of the night! Even stranger, two enormous flying horses appear and insist on taking Kinjal and his twin sister, Kiya, to a place they have never heard of: the Sky Kingdom. The twins have no choice but to go if they want to see their dog again, even if that isn't why the winged pakkhiraj horses showed up in...