Raimundo Alcázar had lost his mother eight or nine months ago. He had never known his father, or, rather, he had no recollection of him, since he was but four years old at the time of his parent's death. His name, too, had been Raimundo, and at the time of his death he had filled a professor's chair at the University of Segovia. When he had first married he had been a youth waiting for an appointment. Isabel's father, a dealer in forged iron in the Calle de Esparteros, had in consequence refused his consent, and only sanctioned their union when at last Alcázar won the professorship above mentioned. He was a young fellow of exceptional talents, and published some works on geology, the branch of science to which he had devoted himself. His death, at the age of thirty-two, was much lamented in the small circle to whom men of science are known in Spain. Isabel, with her little son, returned to her father's house in Madrid, and there, three months after her husband's death, she gave birth to a daughter, who was baptised by the name of Aurelia.

Isabel was a remarkably handsome woman, and, as the only child of a man who was supposed to be in easy circumstances, she did not lack for suitors. But she refused every offer. Her friends called her romantic, perhaps because she had more mind and heart than they could generally boast of. She appreciated talent, and detested the prosaic beings who almost exclusively constituted her father's social circle. She worshipped the memory of her husband, whom she had adored while he lived, as a man of superior talents; she treasured with the greatest care every eulogy that had appeared in print on his works; the sole desire and aim of her life was that her son should tread in his father's footsteps, and become respected for his talents and eminence. Heaven blessed her aspirations. At first she saw him growing up before her eyes the living image of his father. Not in face only, but in gesture and voice, he was exactly like him. Then the boy's progress at school caused her the keenest joy. He was intelligent and studious. His masters were always entirely satisfied with him. Every word of praise which came to her ears, every mark of approbation written against his name, gave the poor mother the most exquisite delight. Now she had no doubt that he would inherit his father's gifts.

She was stricken with remorse sometimes when she reflected how far from equitably she divided her affection between her two children. Whatever efforts she might make to preserve the equilibrium, she could not but confess that she loved Raimundo much the best. Her devoted affection was shown in constant petting and small cares, which pampered the boy and weakened his character. She brought him up with excessive fondness. He, on his part, loved her with such exclusive ardour that at times it was almost a fever. Every time he had to leave the shelter of her petticoats to go to school it cost him some tears. He insisted on her watching him from the balcony, and before turning the corner of the street he looked round twenty times to kiss his hand to her. Even when he was grown up and a science-student, Isabel still kept up the habit of going out on the balcony to wave him an adieu when he went to his lectures. Either by nature, or perhaps in consequence of this rather effeminate education, Raimundo was a timid boy, indifferent to the sports of his companions; and he grew up a melancholy youth, and a serious and uncommunicative man. He had scarcely any friends. At college he joined his fellow-students in a walk before going in to lecture but as soon as it was over he went home, and did not care to go out unless with his mother and sister.

Long before that, when he was no more than ten years old his grandfather died. Thus, by the time he was sixteen, he had to play the part of the man in the house. He took his mother to the theatre, accompanied her in paying visits, and sometimes in the evening, when the weather was fine, he took her out for a walk, giving her his arm like her husband or sweetheart. Isabel's beauty did not desert her with years. Those who saw them together never supposed they could be mother and son, but rather sister and brother, if not a married pair. This was the cause of some distress to the lad. As in Madrid men are not remarkable for respect for the fair sex, he used to overhear, in spite of himself, complimentary speeches, or even bold addresses from the passers-by to his mother. And as he heard them, he felt a strange mixture of shame and pleasure, of jealousy and pride; the position of a son in such a case is extremely peculiar and embarrassing.

Old Martinez, his grandfather, after retiring from business, had lost all his savings. They had been invested partly in a gunpowder-making company which had failed, and partly in Government stock. All he had to leave was an income of from seven to eight thousand pesetas.

On this the three lived very thriftily, though they did not lack the necessaries of life. On a second floor in the Calle de Gravina, Raimundo pursued his scientific studies. He hoped to become a professor, like his father, and, seeing how brilliantly he passed every examination, no one doubted that he soon would attain that position; but, instead of turning his attention to geology, he preferred the study of zoology, and more especially that of butterflies. He began making a collection, and displayed so much eagerness and intelligence that, before long, he was possessed of a very fine one. Before he had left college he was already remarkable as an entomologist. The walls of his room were lined with cabinets, containing the rarest and most precious specimens. For two years he saved up his pocket-money to buy a microscope, and at last was able to purchase a fairly good one, which was as useful as it was delightful. The day he took his doctor's degree, when he was just one-and-twenty, Isabel experienced one of those joys that mothers alone can know. She embraced him, shedding a flood of tears.

"Now, mamma," said he, "I am qualified to compete for a professorship. I shall devote myself to preparing for it, and as soon as I succeed I shall renounce anything you may be able to leave me in favour of Aurelia. I have few wants, and can live on my salary."

These generous words went to the mother's heart; she found fresh reason every day for adoring this model son.

Raimundo now plunged into his studies with ardour, working up the special branches required without neglecting his entomology. Thanks to this, and to the honoured name of his father, he was soon eminent among men of science. He wrote some papers, corresponded with various foreign savants, and had the satisfaction of receiving from them the most encouraging praises. He was, it may be said, a happy man. He had no desires for the impossible to devour his soul, no tormenting love-affairs, or intrusive friends; he enjoyed the peace of home-life, the love of his family, and the pure delights of science; his days glided on in tranquillity and happiness. His mother's friends were amazed at such virtuous simplicity. Had Raimundo no love entanglement? Did he not care for women? And Isabel would reply with a smile of evident satisfaction:

"I do not know. I believe he has never yet thought of such a thing. He is so tied to my apron-string that he is like a child of three. He would find it hard, to be sure, to meet with a woman who would love him as I do."