Fierce Kingdom by Gin Phillips

A mother and young son are exploring the zoo as they often do most late afternoons. Suddenly gunshots and screams fill the air and Joan turns into a tiger mom whose only thought is to protect her son. As they run into a more remote area of the zoo, four year old Lincoln thinks they are playing hide and seek but then the game turns into a run for their lives as gunmen roam the grounds taking out anything and anyone that moves. The story shows ordinary people put into an extraordinary situation and makes for one heck of a thrill ride. It starts off with a bang (pardon the pun) and never slows down for a second.