"I should search the hills of Antonica for the strange wreckage where the mechanical pen was found at."
"I should search the hills of Antonica for the wreckage that Ukaskis the Trader described"
Go to Antonica and click the gear at ( -978, -11, 714 ) /waypoint -978, -11, 714 (Near Firemyst Gully) to spawn the portal. Clicking the portal will zone everyone in the group in, so be sure everyone in the group has their gear-click update.
"Perhaps the portal I opened holds more answers. Perhaps it is worth investigatin to see what i find. I should be prepared to defend myself if I need to."
Click on the Portal, sends you to "A Clockwork Apocalypse"
Kill 10 of the clockworks in the zone. Most are 80-82^^ heroics with some 78-80^ non-heroics. All the mobs are soloable but difficult - and social. Clockworks in Steamfont Mountain update this part.
"I should look for any other clues within this strange time."
Search for more clues within the zone. Talk to a time-locked enchantress at ( 820, -20, 278 ) /waypoint 820, -20, 278 for the update. (Behind the House)
"I must get the Shining Metallic Robe to help repair the time breach."
"I should find a descendant of Rilgor Plegnog and see if they know what happened to the Shining Metallic Robe. Its likely that they have taken up residence in the city of Queynos."
Exit the instance and find a descendant of Rilgor Plegnog by heading to Qeynos Harbor and speaking to Sarbith Plegnog ( 723, -20, -75 ) /waypoint 723, -20, -75.
"Sarbith agreed to give me the Robe, but i have to repair the pen. He says the Exiles of Droga might have the knowledge needed.