The warning could not be starker. Wenn du mich siehst, dann weine (“If you see me, then weep”), reads the grim inscription on a rock in the Elbe River near the northern Czech town of Děčín, close to the German border.
As Europe’s rivers run dry in a devastating drought that scientists say could prove the worst in 500 years, their receding waters are revealing long-hidden artefacts, from Roman camps to ghost villages and second world war shipwrecks.
