I didn't find out until Twitter afterwards, I'm sure she'll be back on Friday introducing the show
Maybe that was that 'earthquake' kind-of scene we saw a 1-second glimpse of in the first preview trailer
Yup, she will! They will be having a party in the CBBC office.
Also one question, do you know if Melanie is appearing in this? Because from the looks of the trailer and previews, it doesn't look like she is.