Ok - an update:
All the "clues" and gifts are in place. When they walk in tomorrow evening, there will be a balloon floating with the first riddle, leading them to the next clue and a package for one child, another clue/package, and another clue/package, until the final clue which is the Hogwart's acceptance letter, which will be in the "cupboard under the stairs" attached to a Hedwig balloon.
We should be back around 4 - 5 pm tomorrow, so they will know then. Soooooooo excited!
Thanks for everyone who provided input!! Will let you know how it goes!
All the "clues" and gifts are in place. When they walk in tomorrow evening, there will be a balloon floating with the first riddle, leading them to the next clue and a package for one child, another clue/package, and another clue/package, until the final clue which is the Hogwart's acceptance letter, which will be in the "cupboard under the stairs" attached to a Hedwig balloon.
We should be back around 4 - 5 pm tomorrow, so they will know then. Soooooooo excited!

Thanks for everyone who provided input!! Will let you know how it goes!