Frozen hearts and hard body parts

The powers

The king and queen of Arendel had been trying for a child for 2 years when it finally happened, the queen was pregnant. The people were overjoyed, well most of them anyways. One night while the king and queen were asleep an evil family member who was exiled for sorcery cast a spell on the enlarged stomach of the queen, he said "let there be a curse upon this child, a curse of a raging storm so that any whom wish to be with her must suffer a grave consequence." The next glorious morning as the queen awoke she could tell something was different and didnt like it, but she decided to keep this to herself rather than worrying her love. The closer the queen got to birth the colder she got, worrying the king very much. Alas the princess was born but with no small fee, in birthing she had killed a doctor and gave half of the nurses frost bite. The king and queen agreed to tell no one and see if they couldnt train this power and use it for good rather than evil.

Within the next year or so the royals had yet another daughter whom was born as any other baby would be. They named the children after each of their mothers the older being elsa and the younger being Anna. Elsa provided no further harm after her birth and learned rather quickly which was a relief to both the king and queen, until she began learning how to use her powers for daily purposes like baking and crafting which didnt end up so well, but she didnt give up.