Lamia (which is the name she chose to take) is a 2 feet high automaton. She has enchanted springs in her legs to allow her to run incredibly fast, and jump incredibly high. She was created by Hephaestus for one of his young children as a toy and bodyguard. The child was young, and monsters were not yet coming for her, but Lamia was created anyway, to be a friend if nothing more.
Lamia carried out her duties with great zeal. She would often talk to the child she had been built for. She would destroy monsters for her, and when she was slightly older they would work together. They were as close to friends as they ever could be, but deep down, Lamia knew it could not last. Her demigod friend started sneaking out at night, she knew that one day he would not return. She didn't want to believe it, but she knew it would come. Then it did.
Lamia waited. Lamia waited for her to come through their door once more. Lamia waited to hear her slight, soft voice. But she did not return. Lamia slowly went mad as the days went by. First she was angry at her demigod. Who obviously didn't want her anymore. Lamia wanted to kill. She then felt angry at the gods, at Hephaestus, and all the rest of them. She wanted revenge. The day she decided to set out to find it, however, she was kidnapped.
Enchanted springs in her legs allow her to jump incredibly high, and bound great distances.