Grace and Thomas are surrounded, alone with the Angel, confronted by the Demon Girl.

The three forces of the British, Americans and Exiles prepare their defences, as outlying troops at Palmer's Point meet the first onslaught. But they are quickly overrun, and fall back to high ground.

Meanwhile, the army of monsters march on inexorably towards the Maunsworth Entry-Point, a seemingly unstoppable storm...

Events in the Maunsworth Array have led to a resonance in the Standing-Point Field that has hurled Grace and Thomas back into the Heavenfield, but worse, has allowed a terrible creature out into the Array Hall.

Stuart Nicks, together with three soldiers, finds himself chasing after the creature in a desperate attempt to prevent it escaping into the Array tunnels, and from there out into the world.

Meanwhile, Thomas and Grace have found themselves on the edge of another Heavenfield reality, alone with the Angel, and the approaching armies.

The three forces, British, American and Exile, unable to retreat, must defend the open Entry-Point. They cannot allow any more creatures through, and can only dig in and await the inevitable onslaught....

The three forces of Americans, British and Exiles, under the guidance of the Angel, are forced into an uneasy alliance against the threat of the approaching Demon army. The creatures, led by the female entity, are intent upon breaking through the Maunsworth Entry-Point and out into the everyday world.

Thomas and Grace travel back from the Heavenfield to the Array Chamber, but during the transition Thomas is surrounded by a host of Angelic creatures, who decide to lend their support against the Demons.

Meanwhile, Alex has a visitation from the Demon Girl, who forces him into a confrontation that leads to a terrible chain of events, which sees Thomas and Grace hurled once more back into the Heavenfield...