Later joined by the foreign Prince Ivar, and Conchobar's daughter, princess Deirdre, they are drawn into Tir Na Nóg, whose king Fin Varra puts the group through various tests to determine their worthiness. The heroes having passed these tests, King Fin Varra gives them certain weapons granting control of the Classical elements Fire, Air, Water and Earth. Thereafter the four overcome Mider's "Evil Sentinels" (recurring villains in the series) to capture corresponding suits of armor, and oppose the various monsters created by Maeve, assisted by the winged fairy "Aideen". Subsequently, Rohan gains a new partner in Pyre the dragon, who later identifies Rohan as Draganta. Later in the series, another Mystic Knight emerges, in the form of prince Garrett of Rheged, who joins the others after they free him from Maeve's telepathic control.