I'm Still Here by Clelie Avit, translated from French by Lucy Foster
What a fascinating premise: Elsa is in a coma after a mountain climbing accident. Her friends and family have pretty much given up hope that she will recover. They don't know that she can hear and understand every single word they (and her doctors) are saying around her.
Enter Thibault, a man wandering around in the hospital while visiting his brother, who stumbles upon Elsa's room and learns about her condition.
I devoured I'm Still Here in a day. If you're looking for a short, fast, intriguing read, you might want to give this a try.