We enjoyed terrific help and support from everyone at the Transport Museum who kindly allowed us to take over the front of their shop for the day - a huge 'thank-you' to everyone. Sharp-eyed visitors might have noticed some escaped helium-filled balloons which were last seen floating high up in the rafters of the Museum waiting for a marksman to shoot them down once the doors were closed!

Finally, a massive thank-you to all those enthusiastic volunteers who spent the day wandering around Covent Garden handing out leaflets, stickers, balloons and bookmarks and encouraging families to visit the Museum and meet the authors.

Here are a few photos of the day...