If a Great Wave Shall Fall (Severus Snape & Lily Evans)

Seventeen-year old Severus Snape unluckily stumbles into an unique, but burdensome, situation of his own making. With his mother's kidnapping and the urging of his dear friend Lily Evans he suddenly - and unknowingly - holds the power to shape the brewing war with his actions. The question is: how will the inexperienced youth handle the drastic changes that will come in his life?