This study of intervention-investigation, explores the consequences of abandoning primary objects and the destruction of the psyche. In this study, three very young children were observed. In the case of Santiago, the abandonment of his mother collapsed and broke his psyche and his psychic apparatus. In the case of Nicolas, we wittnessed the permanence of a good internal object and its?s saving function, the biological father. This allowed him to integrate and prepare for the meeting with an external object of the institution and then the final object: his adoptive father. Likewise, the external object of the institution, allowed the child to have a quiet and harmonious meeting with his therapist, creating in his mind a momentary family that led him to accept and become linked to his adoptive family. In the case of Catalina, the abandonment produced a state of divition, envy, greed and obsesive characteristics. Catalina was transformed by her caregiver, who used love and affection combined with food. Four years later, her therapeutic work continued and her inner world was created. Here its imaginative and symbolic capacity were observed and the objects of her persecutors and rescuers were revealed. Another key finding of this thesis was the discovery of the primary role played by the therapist as the transitional object between the adoptive family and the children. This role can also play a part with previously adoppted siblings.