Have a question?  Just want to say hello?  Think your class or book club might like to Skype with me?  I’d love to hear from you!
Leave a message below or contact me directly at and I’ll get back to you as soon as I can.

All best,



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    If you’d care to send a letter, I’m best reached through my publisher:

    Caragh M. O’Brien
    c/o Roaring Brook Press/Macmillan
    120 Broadway
    New York, NY 10271


    Ari & Milo, my serial novel, is now unfolding on Wattpad! New chapters and illustrations go up daily, M-F. It’s free! Because of problematic themes, it’s for mature readers age 17+.

    For business-related matters, you can also reach me through my agent, Kirby Kim of Janklow & Nesbit, or my publishing house, Roaring Brook Press.