When they are taking Einstein back to Mildred, Ethel eavesdrops on what Mildred is telling Maud and Enid. After discovering that Einstein can still speak and had overheard the conversation between Ethel and Mildred about the project, and that Einstein only has one more day before the spell wears off and he becomes mute forever, Ethel orders Drusilla to hide Einstein in the hollow pine tree outside the school gates. Einstein is put into a cardboard box that also contains a small green frog called Cyril, the animal whom Ethel had used in her demonstration. Cyril escapes and hops to Mildred's room. Cyril tells Mildred that Drusilla hid Einstein in the hollow pine tree outside the school gates and that he overheard several conversations about stealing projects and turning pots into snakes.