Last Watchtower HC

Every major violent event―natural or man-made―is observed and logged: tornadoes, wars, hurricanes, earthquakes, volcanoes, riots, and floods.
All are ranked and cataloged by the lone occupant of a remote lunar observation station: Cal Ferris.
After 5,840 identical days, the arrival of a mysterious stranger sends the isolated astronaut hurtling into a cosmic exploration of loss, love, and empathy―a rediscovery of his own humanity in humanity’s final hour.