My sSister's mMisadventure

It was three o’clock in the morning when the phone rang:. It was my sister. She told me that 5 minutes ago she had saved a person from death. I asked her what happened and she told me that soon she would be at the hospital and asked me to reach her  come to her/come there/come/come and get her.
When I got to the hospital, she had already left. So, I called her to ask where she had gone and what happened to the person she (had) saved. But she didn’t answer so I asked the hospital receptionist and she told me that nobody came there that night. I went back home confused, and I found my sister in front of the door. As soon as I saw her, I knew something was wrong.
She told me that the man he had saved was a crook, . He pretended to be hurt to steal her money while she was on the phone with me. I told her she had been lucky because he could have hurt her to get her money, and she agreed but still was a little shocked.
So I recommend her immediately to call the ambulance I if she ever saw an injured person again, not only for her safety but also because if you don’t know how to do it, succoring* someone who is injured could hurt him even more.

*succor is an unusual word to use. The word is rarely used, and it is mostly used when discussing something related to war.

--Well done. I decided to make some punctuation changes, which I hope you don't mind.