I was stupid and just handed the items to Gardern in Temple of Solusek Ro. He took them and didn't give out the staff, it seems you need to go through the whole text with him. https://wiki.project1999.com/Staff_of_Temperate_Flux_Quest
Ahhhhh warning. I was sitting here trying to figure out what Wanring meant. Bummer. But you've got a goblin jacuzzi ring...so meh.
There is no check on the text. you should be able to give the items without having to go through the text.
Wer lesen kann, ist klar im Vorteil*. I missed the step to turn the Lambent stone into the Darkwood staff. This morning I obtained another Lambent stone, turned it in for the Darkwood staff and gave that to Garnern - and got the Staff of Temp Flux. Sorry about the confusion. *Those who can read have a clear advantage