Murder Book Club: Cozy Mystery Short Story

Susan's book club reads mystery books all the time, but this time they aren't just reading about it, they are living it when Laura dies the same way the main character in the book did. Carbon Monoxide poisoning might be common, but Susan does not like the coincidence and refuses to believe it is accidental the way the police think it is. Butting heads with Detective Mason, Susan is determined to find out the truth and together with her beloved dog Toby she sets out to find it.
Will Susan be able to find out what truly happened, and whether it was murder or an accident, or will the fact that she can't remember the night herself get in the way of the truth? Will Toby be able to help her, despite the fact that he can't talk?