In the aftermath of their first encounter with the Heron Knights, the D.I.C.E. team unearth a huge, mechanical structure resembling a Dinobreaker but shaped like a dragon. The D.I.C.E. team feverishly investigate its secrets and determine it to be products of the Heronians. Then, a mysterious boy emerges from within. Calling himself Clozon, he offers to give them the fortress if they simply take him home. Trouble is, home is a long way from Heron's Gate.