"Marc Guggenheim is one of the great imaginative minds of our medium and a born storyteller, yarn weaver, and world creator of the highest order. Dive in!" --Guillermo del Toro "Heartfelt and beautifully written, In Any Lifetime elegantly leaps between science fiction and romance, begging you to ask the age-old question: How far will you go for the one you love?" --Brad Meltzer, #1 bestselling author of The Lightning Road and The Escape Artist " In Any Lifetime is a special book, the kind that seamlessly weaves genres together to tell a story that feels vibrant and fresh but also timeless. A multiverse thriller/romance that is packed with heart and stakes--I was hooked from page one." --Alex Segura, bestselling author of Secret Identity " In Any Lifetime is a fantastic Crichton-esque techno-thriller take on parallel words, with a powerful emotional core. Grabbed me from the first chapter." --Charles Soule, bestselling author of Star Wars: Light of the Jedi and The Oracle Year "Propulsive, thrilling, well-crafted, and deeply romantic, In Any Lifetime will bend your mind and keep you turning pages late into the night" --Ayelet Waldman, creator of the Netflix series Unbelievable and author of Love and Other Pursuits.