Eddie Redmayne said in an interview earlier, that he recorded 3 bedtime stories for CBeebies in December. The firs story aired on Christmas Day, the second one at the end of January, and the last one today. If you have access to BBC iPlayer, you can watch it here. I saw the live stream, and Eddie was cute, phenomenal, as always.
He read a story about a Little Hippo, who's the youngest in his family . . . and the smallest. Smaller than his parents and siblings. Smaller than his friends, too, from old Crocodile to giant Elephant. And even though everyone promises he’ll grow, Little Hippo doesn’t want
to wait. He wants to be big RIGHT NOW! But when he helps a creature even tinier than himself, Little Hippo learns that it’s the size of his heart that counts most of all.
The book on goodreads - review