Source: CNN From Errol Barnett, CNN Lalibela, Ethiopia (CNN) — It’s 4 o’clock on a Sunday morning when a trail of figures dressed in white emerges from the deep darkness. Quietly, the summoned crowd makes its way down a cluster of ancient structures as the slow beat from traditional skin drums beckons. It’s a common scene here in Lalibela, a small town in northern Ethiopia that’s home to 11 spectacular churches carved both inside and out from a single rock some 900 years ago. The chiseled creations have turned this mountain town into a place of pride and pilgrimage for worshipers…