Round their muddy maze of trenches,

Rather like an aggravated

Rabbit warren with the roof off,

Worse to find one’s way about in

Than the dark and windy subways

Of the Piccadilly tube are.

In the day and night that followed

Many things learnt Tiadatha

Of the subtleties of trench-craft.

Learnt of crumps and duds and shrapnel,