three prisoners used spoons to dig through the walls of their alcatra cell in 1962 night after night they scraped away at the concrete surrounding the air vents gradually widening the hole they used a makeshift drill from a vacuum cleaner to speed up the process and fashioned lifelike dummy heads to fool the guards during bed checks after months of digging they finally broke through the vent and crawled through through to reach the service Corridor behind the wall from there they climbed to the roof and slid down a kitchen vent pipe making their way to the island
Shore they used a raft assembled from raincoats and despite a massive man hunt they were never found
