Combined observation

Combined observations are items used in the Heart of Stone quest. The following combined observations exist:
 * Combined observation: Xenia was alone
 * Combined observation: We stand apart
 * Combined observation: Golem and I
 * Combined observation: Ariane and the golem
 * Combined observation: The madness of friends
 * Combined observation: United we stand
 * Combined observation: Elder stalker
 * Combined observation: Xenia is harming the mouthpiece
 * Combined observation: The mouthpiece can observe events
 * Combined observation: Ariane is studious
 * Combined observation: Xenia is avoiding detection