Petra

The humorous adventures of an irresistible little rock who finds herself in constantly changing circumstances, Petra is a picture book that celebrates the power of perspective and believing in yourself.
Petra is a little rock who believes she is a mighty mountain . . . until a dog fetches her for its owner, and she is tossed into a bird's nest. A mountain? No, Petra is now an egg! An egg of the world in a world of possibility. Until she's flung into a pond, and becomes an amazing island . . . and, eventually, a little girl's pet rock. What will she be tomorrow? Who knows? But she's a rock, and this is how she rolls!

Is Petra a mountain? An egg?
Who knows!
She's a rock and this is how she rolls.

Petra is a mighty mountain that can't be moved by the wind or time. Or so we think until we discover that she's actually something even more astonishing. Petra has the potential to be anything – an island, an egg, even an elephant – thanks to her lively imagination.