The Case of the Dumb Bells (I Can Read Level 2)
by By Bonsall, Crosby Newell
Category: Juvenile Fiction , Readers , Beginner

Doorbells are mysteriously ringing all over the neighborhood. The four private eyes are in for some surprises -- like burning cakes, overflowing bathtubs and a phone that doesn't ring -- on the invisible ringer's trail. But the culprit turns out to be the biggest surprise of all!