There's an Elf in Your Book (Who's in Your Book?)

GOLLY GUMDROPS . . . A LITTLE ELF HAS FOUND THEIR WAY INTO YOUR BOOK!
What does Elf want?
Oh! Just to see if you've been naughty or nice this year!\nElf will ask you a few simple questions to find out. And surely there won't be any tricks to try and get you to be naughty . . . will there?\nHmmm, this could be quite a tricksy little elf. You'd better keep your wits about you if you want to make it on to Santa's Nice List!\nA fantastically fun and uniquely interactive treat from the creators of There's a Monster in Your Book. Discover a wonderful new Christmas tradition in a book to read again and again.\nAlso available:
There's a Monster in Your Book
There's a Dragon in Your Book
There's an Alien in Your Book