Gdje zidovi stoje uspravno

Polly je uletjela u kanjon. Zidovi su bili puno veći sada. Crvena stijena je išla ravno gore. Nije bilo načina da se penje.

Polly flew into the canyon. The walls were much bigger now. The red rock went straight up. There was no way to climb it.

Tamne linije su išle niz zid. Izgledale su kao crna tinta. Ali nisu bile boja. Voda i prašina su ih napravile, veoma sporo, kroz dugo vrijeme.

Dark lines ran down the wall. They looked like black ink. But they were not paint. Water and dust made them, very slowly, over a long time.

Ispod stijene, Polly je pronašla mnoga mala gnijezda od blata. Stotine lastavica su živjele tamo. Jaši zid, rekla je jedna ptica. Topli zrak ide gore.

Under the rock, Polly found many small nests made of mud. Hundreds of swallows lived there. Ride the wall, one bird said. The warm air goes up.

Tako je Polly jahala topli zrak. Nije micala krila. Te večeri, klanac je bio viši od tisuću stopa.

So Polly rode the warm air. She did not move her wings. That evening, the cliff was more than a thousand feet high.