another dumb kyrenna/caradon question regarding turn in - instant attack %T? or scowl

[syztem]

so yeha i did this twice personally, and dozens of times just never paid attention. when you turn the mimic cell key in. do they automatically AGGRO the turn in player, or do they just both respawn KoS? Reason I ask is because i have 3 keys, neither are on a FD class, just cleric rogue and a shaman. so depending howit went I was thinking turning it on rogue, going hide sneak ASAP, then have shaman dot kyrenna and pull her out solo. unfortunately I cannot find any of my logs of that engagement to confirm. otherwise I rather not camp another keyt solely for my SK, might just take a second primal rogue down and burst the shit out of both caradon/kyrenna.

any insight or confirmation on this aggro mechanic is mucho appreciated.