This is a thrilling mystery novel about a small town that is thrown into chaos when a strange sound, known as the Blooping Boop, is heard coming from the nearby woods. As the townspeople investigate, they uncover a dark secret that has been hidden for years
From Wikipedia
Bloop was an ultra low frequency, high-amplitude underwater sound detected by the U.S. National Oceanic and Atmospheric Administration (NOAA) in 1997. By 2012, earlier speculation that the sound originated from a marine animal was replaced by NOAA's description of the sound as being consistent with noises generated via non-tectonic cryoseisms originating from glacial movements such as ice calving, or through seabed gouging by ice.