Star Sentry

The Star Sentry is a mob that spawns with a random event in the Dwarven Mines at any time. (This is not part of the regular cycle of events, it is a random occurrence).

When the event occurs, the following message will be displayed in chat letting players know the location of they will spawn at:

Note: Royal Mines is not the only place the Fallen Star Event spawns in; it also appears in Rampart's Quarry, Cliffside Veins and Forge Basin.