"If yer gonna go diggin' around in it wi' picks an' shovels an' great machines, then yeah, yer should." There was a sudden passion in his voice, and a fear she had not heard before. He had been so strong in the autumn. This was something new, something over which he felt he had no control.

"What sort of thing is there?" she asked. "You mean graveyards and plague pits-that sort of thing?"

"There are, but wot I were thinkin' of is rivers. There's springs and streams all over the place. London's mostly on clay, yer see." His face was tense, eyes keen. "I learned 'em from me pa. 'E were a tosher. One o' the best. Knew every river under the city from Battersea ter Greenwich, 'e did, an' most o' the wells too. Yer any idea 'ow many wells there is, Miss 'Ester?"

"There must be . . ." She tried to think and realized she had no idea. "Hundreds, I suppose."

"I don't mean where we get water up," he explained. "I mean them wots closed over and goes away secret like."

"Are there?" She did not know why it troubled him, still less why he should have come to her about it.

He understood and grimaced at his own foolishness. "Thing is, Miss 'Ester, there's 'undreds o' navvies workin' on all this diggin'. 'As bin for years, wot with one tunnel an' another for sewers, roads, trains, an' the like. It's 'ard work an' it's dangerous, an' there's always bin accidents. Part o' life. But it's got worse since all this new diggin's bin goin' on. Everyone's after a bit o' the profit, an' it's all in a terrible 'urry 'cos o' the typhoid an' the Big Stink an' all, an' Mr. Bazalgette's new drawings. But it's gettin' more dangerous. People are usin' bigger and bigger machines, an' goin' faster all the time 'cos o' the 'urry, an' they in't takin' the time ter learn proper where all 'em streams an' springs is." His face was tight with fear. "Get it wrong an' clay slips somethin' 'orrible. We've 'ad one or two cave-ins, but I reckon as there'll be a lot more, an' worse, if folks don't take a bit more care, an' a bit more time."

She looked at his drawn, tired face and knew that there was more behind his words than he was able to tell her.

"What is it you think I could do, Mr. Sutton?" she asked. "I don't know how to help injured workmen. I don't have the skill. And I certainly don't have the ear of any person with the influence to make the construction companies take more care."