Detention: Elf-Style!

Last month, we received a letter from Santa, warning us that some of his naughty elves had gone AWOL and appeared to be heading to DreadLock... These elves really don't like school, or anything to do with school, so they plotted to make a few 'elf-improvements' to 'DETENTION'. What Santa didn't realise, was that they stole a load of his presents when they left! It's your job to find the 16 missing gifts, so that we can return them (and these pesky elves) to the North Pole!