Two brothers, aged 18 and 21, returned home today from an outing in the Judean Desert to find a large-scale search for them underway including the Arad police department and the Ein Gedi rescue unit. The search began this morning after the hikers had not been heard from since they set off on Sunday for Nachal Arugot, near Ein Gedi. Last week, two siblings from Efrat were found alive and well after having been missing for close to 18 hours while hiking in the Nachal Tze\'elim area.