"I know. I felt your weight shift as I leaped. If you had done it on purpose, I'd have dropped you into the trench." And in that instant she looked uncomfortably like Chester. He believed her: she could drop a man into a trench if she had reason to. Centaurs were tough creatures!

       "Maybe I'd better walk now."

       "No-there's another trench. They've been opening up recently."

       "Well, I could climb down one side and up the other, carefully. It would take longer, but-"

       "No-there are nickelpedes at the bottom."

       Bink quailed. Nickelpedes were like centipedes, but about five times as large and considerably more deadly. Their myriad legs could cling to vertical rock faces, and their pincers could gouge out disks of flesh an inch across. They inhabited shadowed crevices, not liking direct sunlight. Even dragons hesitated to walk through ditches known to be infested by nickelpedes, and for good reason.

       "The cracks have been opening up recently," Cherie continued as she kneeled to permit Bink to mount her again. He picked up his dropped staff and used it to help him climb. "I'm afraid there's big magic brewing somewhere, spreading throughout Xanth, causing discord in animal, vegetable, and mineral. I'll get you across that next trench; then it's beyond centaur territory.''

       It hadn't occurred to him that there would be such barriers. They didn't show on his map. The trail was supposed to be clear and reasonably safe throughout. But the map had been made years ago, and these cracks in the ground were new, Cherie said. Nothing in Xanth was permanent, and travel was always somewhat risky. He was lucky he had obtained the lady centaur's help.

       The landscape changed, as if the trench separated one type of place from another. Before it had been rolling hills and fields; now it was forest. The path became narrower, crowded by huge mock-pine trees, and the forest floor was a red-brown carpet of mock needles.