Lindsay is the author of multiple novels for young adults, including Sekret and A Darkly Beating Heart, as well as the comic series Black Swan. She is the showrunner and lead writer for Serial Box's The Witch Who Came In From the Cold, a Publisher's Weekly Best Book of 2017. Her short stories and comics have appeared in the anthologies A Tyranny of Petticoats, Strange Romance Vol. 3, and Toil & Trouble and on Tor.com. She lives in Washington, DC with her husband and dog.