The My Super Power Series - My Super Power Series, #1

My Superpower Series is the story of ten strangers from different periods in time who gain super abilities from an unknown source. Each person's ability is weak to begin with, but, as time goes on, they learn to gain mastery of their powers and strengthen them. Once their capabilities have matured, the strangers are greeted by an immense threat. A strange phenomenon faces each of the strangers as they encounter unearthly creatures from another dimension, beings that dwell between time and the current universe and attack Earth in the strangers' time.
The vicious attacks allow the strangers to meet up and fight alongside one another - each one using their unique abilities to save the world.