Complex sentence: Seeing this restriction as a challenge, Nurse Gillian Boardman eludes guards to see Smith and in doing so inadvertently becomes his first female "water brother" by sharing a glass of water with him, considered a profound relationship by the Martians.
Split into simpler sentences: Seeing this restriction as a challenge, Nurse Gillian Boardman eludes the guards and goes in to see Smith. By sharing a glass of water with him, she inadvertently becomes his first female "water brother", considered a profound relationship by the Martians.