Hydro Thermokinesis is a power that allows a merperson to heat and boil water. This can be used to create steam, super heat objects or raise bodily temperature. This is the most dangerous power of the three because, control can easily be lost and it can create so much heat and dryness that it can even easily dehydrate people or even create fires. There is a disadvantage to this power because although water can be heated, the mermaid with this power has no control over its movement. This power can come in handy when in need of a steam cover, melting ice, or drying off quickly. It is currently possessed by Rikki, Charlotte Watsford (tempo) Julia Grove (tempo) Zac, Sirena, Lyla and Nixie.