Silent Death  

Has four PHs in two tunnels, all four are "a large widow". Map points for the two tunnels are:

P 669.8914, -1081.2527, 188.0360, 240, 127, 0, 3, Spider_tunnel
P 1150.3710, -547.7827, 181.6279, 240, 127, 0, 3, Spider_Tunnel

The tunnels are identical aside from location; each has a static spawn at the North end and a roamer which paths between the entrance of the tunnel and the alcove SE of the static spawn.

Had him spawn four times this evening and netted 3 Ring of the Silent Foe, 1 Spiderback Axe, 3 Vitallium Encrusted Tarsal Clay and 1 Vitallium Encrusted Cephalic Clay.

Uses Silent Death (mercs actually cured it for me) on any target on the threat list, but he doesn't use it often and it's possible to kill him before he gets the chance.