Milli is visiting her friend Emily’s class for Favourite Things Day! That’s the day everyone brings in their favourite things to show the whole class. Emily can’t wait to show the three sparkly shells she found at Sparkle Beach, but when she opens her treasure box, they’re gone! She must have dropped the shells on her way to school! Milli, Geo and Bot rush back to Emily’s apartment building to retrace her steps. Elevator escapades, laundry room adventures, and leaping lily pads over Frog Pond are all in a day’s work for our mighty heroes. Will they find Emily’s sparkle shells in time for the show?