Thimb nods, looking thoughtful, "We do still both have our, ah, disguises, so we could be near by, but, my invisibility only lasts an hour, and if Ka'Ri has to use any magic of her own-" Thimb popped a closed hand open with a shower of sparks to imply popping back into visibility, "it only lasts an hour, and, um, I need to touch her if for some reason I need to recast it?" she rubbed her chin, "unless someone has a ring of spell storing, then I could throw a charge or two in there, cast it on her to start and she'd be able to cast it on herself again if need be..." she laughed hollowly, having been trying to get her hands on a ring of spell storing for years. Then again, she wasn't commissioner of the fey tower.
"I can also only cast it on one of us at a time, but, um, I assume the plan is to take the amulet so I can then study it? Or, er, someone more experienced then me, maybe? B-but I can try! I mean," she then looked to Tree, "if you're alright with all of this?"