Early the following day Cyril Lawrence was sent to complete the B5 tunnel into the Turkish lines and passed the place where the 3rd Battalion had attacked.

What a different appearance the whole place has assumed since I saw it last. It is just torn to pieces, sandbags blown to smithereens and parapets just levelled. Anyhow, on down through the tunnels until we reach our old underground firing line. The daylight is coming in through the opened-up recesses, through which the first line hopped out, and lying all along it are the forms of fellows killed even before they had got out into the open… (Lance Corporal Cyril Lawrence, 7 August 1915)²¹

Shallow underground saps (again Russian saps in all but name), in places only 6in below the surface, had been quickly run out at the Nek in preparation for the attack of 7 August. Had the attack been a success they were to be converted into communication trenches.²² The underground warfare at Lone Pine, while appearing to follow the conventions of siege warfare in the early blowing of the mines, was significant and innovative. The difficulties faced at Lone Pine were to be encountered by the British on 1 July 1916 when communication tunnels were attempted on a larger scale.