"Hurry!" I called to my sister, pulling her out of the water. I reached the shore and sighed with relief. I tried to pull my sister to shore but it was too late. The sirens got her, just like mom and dad.  I vowed from that day forth to get revenge on the sirens
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Thank you @melonypanda for giving me this writing prompt. Hope everyone enjoys the story!
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"Holly! No! Wretched sirens" I dove back into the water to see that my sister was struggling to get away from them. One of the sirens grabbed my wrist and started to pull me away with his slimy hand. I shouted "Get away from me you disgusting creature!" I yanked as hard as I could but it didn't do any damage. I felt myself being pulled away, floating in the water away from Holly. "I'll come rescue you!" Another grimy hand wrapped around my mouth. "Quiet you little brat"It said. "Or I'll give you to Cyberus." I gasped as he released my mouth and felt that I didn't need to have oxygen under water. "Where are you taking me?" I asked. "Don't worry, I'm taking you somewhere nice" I found a hint of sarcasm in his voice. The last thing I remember before going black was two guards dragging my sister away....