 Hannah goes to portal back to Ireland, but the key is missing. Hannah is stranded in Australia until she and Brett can discover who took the key, but when they find out that Meredith has taken it to the museum, things take a turn for the worse. Dr Ackerman, the museum geologist, has determined that the strange artifact is made from an unknown meteoric ore. She won t give the key up until she has run tests to unlock it s secrets. The test for Brett and Hannah is getting the key back.