You can find Elle's books here (among other places):
Her debut young adult fantasy, Clockwise, released this September!
A bit about Clockwise:
Boy watching with her best friend would be enough excitement for fifteen year old Casey Donavan. She doesn't even mind life at the bottom of the Cambridge High social ladder, if only she didn’t have this other much bigger problem. Unscheduled trips to the nineteenth century!
When Casey gets talked into going to the Fall Dance, the unthinkable happens--she accidentally takes Nate Mackenzie, the cutest boy in the school, back in time. Protocol pressures her to tell their 1860 hosts that he is her brother and when Casey finds she has a handsome, wealthy (and unwanted) suitor, something changes in Nate. Are those romantic sparks or is it just ‘brotherly’ protectiveness?
When they return to the present things go back to the way they were before: Casey at the bottom of the social totem pole and Nate practically the flag flying from the top. Except this time her heart is broken. Plus, her best friend is mad, her parents are split up, and her little brother gets escorted home by the police. The only thing that could make life worse is if, by some strange twist of fate, she took Nate back to the past again.
Which, of course, she does.