Heptarions the Story

Heptarions are creatures inhabiting the plane of Hypsios. Which can only be accessed by Plane Jumpers. The first Plane Jumpers didn't have any interest in the Heptarions and moved on to other planes. Now a group of kids under leadership of a very weird and offputting scientist have jumped to the plane of Hypsios. Now they must live together with the Heptarions, since they have stranded themselves there. Yet some of them aren't that glad with their presence there, while others seem overjoyed.