Becoming Ellen / Shari Shattuck.

Enhanced descriptions from Syndetics:

Ellen Homes is done being invisible. Well, sort of.

Living with her closest friends, Temerity and Justice, has helped her step out of the shell of invisibility she once hid away in. She still seeks refuge in solitary time and observing from afar, but she has pushed herself to open up to others in ways that bring her unexpected happiness.

But when a terrible bus crash upends her normal routine, Ellen finds herself on a whirlwind crusade for the unseen and downtrodden. Only this time, helping others-including two young children with no one else to turn to-will mean facing a pain from her past that she's long tucked away.

Picking up where Invisible Ellen left off, Becoming Ellen returns us to the touching, poignant, and compassionate world of Ellen Homes as she learns how to navigate the world she has decided to become a part of.
' Becoming Ellendeftly picks up where Invisible Ellen ,a favorite of mine, leaves off. It's a novel of grace and tenderness, so darkly funny in places it made me laugh out loud; I kept stopping as I read, to hold on to these wonderful characters, to keep them with me just a little longer.' Luanne Rice, New York Times -bestselling author

'A tale of kindhearted, hesitant heroism, with a little vigilante justice.' Kirkus Reviews

'Endearing . . . the character interaction, funny situations and heartfelt drama elevate this tale above many others in this genre.' RT Book Reviews

'Despite the underlying dark themes, the novel is upbeat overall as Ellen continues to take steps to open herself up to the world. Readers will warm to Shattuck's brave heroine.' Booklist