Simon and Lewis chase their mysterious assailant.

In an ill-conceived idea, Lewis makes some embarrassingly bad stairs up the side of the yogcastle.

William Ryker and his dwarvish companion follow a strange path.

With their obsidian in hand, William Riker and his dwarvish pal dabble in the occult.

With construction of the yogcastle in half-swing, the boys get interrupted in their building efforts.

The boys take shelter from Israphel under the shadow of their hellgate, and hatch a plan to return to the safety of the yogcastle.

Simon and Lewis get to work pimping out the yogcastle but are again distracted by rude interruptions to their construction efforts.