1. An enhanced monitoring system that identifies an event candidate within a wireless node network, the system comprising: a server disposed at a top level within the wireless node network; a plurality of ID nodes disposed at a low level within the wireless node network, the ID nodes being incapable of communicating directly with the server; a master node disposed at a middle level within the wireless node network as a monitoring intermediary between the ID nodes and the server, wherein the master node further comprises a master node processing unit, a memory storage coupled to the master node processing unit, the memory storage maintaining event detection engine code for execution by the master node processing unit, a timer coupled to the node processing unit and operative to track an elapsed time after an initiating event; a first communication interface coupled to the node processing unit and operative to communicate directly with at least a first of the ID nodes over a first communication path; a second communication interface coupled to the node processing unit and operative to communicate directly with the server over a second communication path, wherein the first communication path is distinct from the second communication path; wherein a first of the ID nodes broadcasts at least a first signal over the first communication path; and wherein the master node, when executing the event detection engine code on the master node processing unit, is operative to detect, via the first communication interface, the first signal broadcast by the first of the ID nodes, identify the event candidate as a first sighting event related to the first ID node when the master node detects the first signal, generate event data representing the first sighting event after identifying the first sighting event, wherein the event data representing the first sighting event comprises an identifier of the first ID node and further comprises at least timing information and observed signal strength information characterizing the first sighting event, cause the second communication interface to provide the event data representing the first sighting event to the server, monitor, via the first communication interface, for any in a series of successive signals broadcast by the first ID node within an event horizon for the first ID node after detecting the first signal, track, via the timer, the elapsed time between successive ones of the first signal and any in the series of successive signals broadcast by the first ID node, track a received signal strength indicator value for the first signal and any in the series of successive signals broadcast by the first ID node, identify the event candidate as a subsequent event related to the first node and within the event horizon beginning with the first sighting event, the subsequent event being identified based upon timing information related to the elapsed time tracked by the timer and based upon observed signal strength information as indicated by the received signal strength indicator value, generate event data representing the subsequent event as including at least the timing information related to the elapsed time tracked by the timer and based upon observed signal strength information as indicated by the received signal strength indicator value, and cause the second communication interface to provide the event data representing the subsequent event to the server; wherein the server receives the event data representing the first sighting event and the event data representing the subsequent event as summarized observations by the master node indicating a status of the first ID node.