The tunnel yawns from the earth beneath the Al-Azhar University in Gaza City. Once, Hamas terrorists would emerge from here to commit atrocities.
For them it was just one more node in a 300-mile-long tunnel network that sprawls across subterranean Gaza devoted to a single goal: spewing terror into Israel.
Like all Hamas tunnels it is sheathed in layers of concrete bolstered by bags filled with sand.
Wedged beneath its roof, though, is one sack that stands out. Lightly coloured