Loudly he knocked at the door, and in a loud voice shouted for them to let him in, but the door was of massive oak, strongly barred, and studded with spikes, so they felt safe, and bade Little John begone.
Then Little John's heart was mad with grief and fear for his master's life.

Wildly he looked about him, and his sight fell upon a heavy stone mortar, such as three men could not lift nowadays.

Little John took three steps forward, and, bending his back, heaved the stone mortar up from where it stood deeply rooted.

Staggering under its weight, he came forward and hurled it crashing against the door.

In burst the door, and away fled the frightened nuns, shrieking, at his coming.