Well, your "pet" chick grew up into a chicken, but you're still not sure how the egg got into that cave...

Pheeney had appeared randomly near the Master's home as an egg - and fortunately, neither dragons nor human were hungry. By some strange mishap, Pheeney was mistaken as a petite dragon egg and was cared for. Now, this chicken lives happily, - protected by her scaly friends - pecking at shiny objects that she finds intriguing.