It doesn't say who has this key.
@FitzTheRuke says we procured the Triangle key but no-one IC laid claim to it.
The Sticks quickly repeated their skeleton-capture on the next skeleton; this time more professionally done. The not-so-quick members of the team kept an eye on the gargoyles while the quicker ones tackled it, smashed it, and procured a triangle-headed key. The gargoyles didn't move. At least...
www.enworld.org
I'm not sure who to decide should have it.
The 5 sided key is being held by Chrysagon who, unfortunately, went in the other direction:
Imogen, Chrysagon inquires. What do you think are the significance of the different meeh-tal platings on top of the pillars? "Honestly," Miss Imogen replies, "I'm not sure." She bridles slightly at the absence of her honorific, since only a few graduates of Miss Enna's school had earned the...
www.enworld.org