Tall Tales Twin-Pack, Mysteries

2 mysterious short stories in 1 book.
In "The House on Cliffside," Colonel Booth fears that his wife is spending too much time with their doctor. When her body is found at the foot of a cliff, Booth knows it isn't an accident.
"In the Playground," 2nd place winner in Suspense Magazine's 2011 writing contest, is a thriller about a suspicious stranger who watches over a playground - but why?