These are two in the Kindle Scout program. Both are listed as "Hot" so all you have to do is nominate and you will likely get an ebook free.
I thought I had reviewed both authors here. Apparently not. I'll get on that.
Dave Creek wrote a SF mystery novella set on the moon called Tranquility. He has been up for a few Analog reader awards. This new one is called The Unmoving Stars.
Norman Prentiss has won two Bram Stoker awards and appeared in Year's Best Horror anthologies. "In the Ears of my Porches" is a strange one where a wife talks all during the movie to her blind husband except she tells it wrong. His new one is Life in a Haunted House.