Human to mermaid story

Once upon a time a girl named mally lived in a jungle...She had a magical unicorn 🤯 named kate...But she didn't knew that he was magical 👀...She lived with him since her childhood...They had a very great bonding 💕...One day they went to a walk in the jungle ...They saw a river where Kate drank water ...Mally rested for a while and falls asleep ...After an hour when she woke up she saw kate was not there...She rushed to find him and saw a sparke coming from the river✨....mally went to check in and fall in the river ...She realised she could breath in water she was shocked...Mally became astonished when she saw her tail ...Ooh she became a mermaid 🌷....Mally saw a beautiful mermaid sitting on a stone..she went and asked her that what place is this ..When that girl saw mally she started shouting princess is here princess is here....Mally was scared when many creatures came there .... everyone was saying hail princess luna.. she told them that she was not a princess she is and ordinary girl....then a beautiful queen came and said "uh r our princess and u r chosen by the great river ..our kingdom is in danger only uh can help us"...Mally asked how can she help them ...Queen told her that she will get powers for this...and suddenly a shine started coming from mally and her eyes became all black she was flying....Mally was really scared and asked what is going on...Queen calmed her and told her not to get scared..she is only getting her powers ...After a while mally feels good and asked about her powers ...Queen told her that her first power is invisibility....Mally tried to be invisible but she couldn't...Mally disappointed....Queen told her that she can use her power only in need ...Then they went inside the kingdom and Queen told everything to mally that how a big black octopus 🦑 is leaving a black gas around their kingdom and if he will successful then everything will be destroyed even the lives above water ....Mally was ready to save everyone's lives as she was very brave .