He catches up with her in the foothills of the Eternities just before a huge doughpot traps them in a box canyon. Hammond is able to get off two shots of his flame pistol at the doughpot before the barrel shatters, reducing the thing's size but still leaving them trapped.
As they reunite in the foothills of the Eternities, a gigantic pot suddenly materializes, encasing them in a narrow gorge. Hammond fires off two shots from his flame gun at the pot before its barrel breaks, shrinking it but keeping them trapped.