Beau & Bart fight to escape a black hole - where money and people enter, but can't leave! The cousins have to sleep sitting up in Stop Gap's only watering hole, after saving from robbers the treacherous Wembly, who promised them free, comfy hotel beds - but knew the inn was full-up. Wembly's suspiciously tight with the mining town's telegraph owner, son of a Colorado Senator. Why is the town too small to have a bank, as its population and wealth mysteriously expand to infinity - and beyond?