Name That Stone!
Dear readers, please help me name the imaginary stone used to build the castle in Queendom (book 3 of The Portal Series). The stone is as smooth as glass, glows a faint purple-ish blue and can only be cut with the claws of the Battle Bunnies. Best name suggestion will be written into Queendom and I will acknowledge you as the clever person who thought up the name!
Thanks for all your suggestions, here, on Twitter and Facebook. I have decided to go with a combination of two suggestions: Slippery Agamastone (complete list can be found in the comment section).