Muriel Strauss is Henry’s younger sister. She’s an art critic and, like David, is highly successful in her field. She’s also exuberant and confident—in other words, the total opposite of Henry. Muriel loves Henry but doesn’t understand why he’s so forlorn, insecure, and confused about what he wants out of life. She frequently offers him small pink pills, which she calls her “little pink umbrellas,” which are (presumably) some kind of prescription drug that she uses recreationally. Henry usually declines her offer, though. Once Henry’s deal with Luc causes Muriel to see Henry through enchanted, unseeing eyes, she, like the rest of her family, suddenly thinks the world of Henry. Henry initially appreciates Muriel’s new affection for him, but it saddens him once he realizes that it’s not voluntary or real.