"Only, mind," Mr. Walker added in an impressive afterthought, "I can't, of course, ENGAGE that the Great North Midland people will take my advice. You mustn't come down upon me for restitution and all that if your friend don't succeed and they take some other fellow. All I guarantee for certain is to withdraw my own plans--not to send in anything myself for the competition." "I fully understand," Tyrrel answered. "And I'm content to risk it. But, mind, if any other design is submitted of superior excellence to Le Neve's, I wouldn't wish you on any account to--to do or say anything that goes against your conscience." Erasmus Walker stared at him. "What--after paying ten thousand pounds?" he said, "to secure the job?" Tyrrel nodded a solemn nod. "Especially," he added, "if you think it safer to life and limb. I should never forgive myself if an accident were to occur on Eustace Le Neve's viaduct." CHAPTER XIII. ANGEL AND DEVIL. Tyrrel left Erasmus Walker's house that morning in a turmoil of mingled exultation and fear. At least he had done his best to atone for the awful results of his boyish act of criminal thoughtlessness. He had tried to make it possible for Cleer to marry Eustace, and thereby to render the Trevennacks happier in their sonless old age; and what was more satisfactory still, he had crippled himself in doing it. There was comfort even in that. Expiation, reparation! He wouldn't have cared for the sacrifice so much if it had cost him less. But it would cost him dear indeed. He must set to work at once now and raise the needful sum by mortgaging Penmorgan up to the hilt to do it. After all, of course, the directors might choose some other design than Eustace's. But he had done what he could. And he would hope for the best, at any rate. For Cleer's sake, if the worst came, he would have risked and lost much. While if Cleer's life was made happy, he would be happy in the thought of it. He hailed another hansom, and drove off, still on fire, to his lawyer's in Victoria Street. On the way, he had to go near Paddington Station. He didn't observe, as he did so, a four-wheel cab that passed him with luggage on top, from Ivybridge to London. It was the Trevennacks, just returned from their holiday on Dartmoor. But Michael Trevennack had seen him; and his brow grew suddenly dark. He pinched his nails into his palm at sight of that hateful creature, though not a sound escaped him; for Cleer was in the carriage, and the man was Eustace's friend. Trevennack accepted Eustace perforce, after that night on Michael's Crag; for he knew it was politic; and indeed, he liked the young man himself well enough--there was nothing against him after all, beyond his friendship with Tyrrel; but had it not been for the need for avoiding scandal after the adventure on the rock, he would never have allowed Cleer to speak one word to any friend or acquaintance of her brother's murderer.