CAVE PAINTINGS

The light-skinned, redheaded narrator journeys alone as flight attendants supply snacks to diverse, interspecies passengers. The kid muses, “Sometimes they ask me, ‘Why are you always going to the farthest planet?’ ”The response comes after the traveler hurtles through the solar system, lands, and levitates up to the platform where a welcoming grandmother waits: “Because it’s worth it / to cross one universe / to explore another.” Indeed, child and grandmother enter an egg-shaped, clear-domed orb and fly over a teeming savanna and a towering waterfall before disembarking, donning headlamps, and entering a cave. Inside, the pair marvel at a human handprint and ancient paintings of animals including horses, bison, and horned rhinoceroses. Yockteng’s skilled, vigorously shaded pictures suggest references to images found in Lascaux and Chauvet Cave in France. As the holiday winds down, grandmother gives the protagonist some colored pencils that had belonged to grandfather generations back. (She appears to chuckle over a nude portrait of her younger self.) The pencils “were good for making marks on paper. She gave me that too.” The child draws during the return trip, documenting the visit and sights along the journey home. “Because what I could see was infinity.” (This book was reviewed digitally with 9.8-by-19.6-inch double-page spreads viewed at 85% of actual size.)

Celebrated collaborators deliver another thoughtful delight, revealing how “making marks” links us across time and space.