The Secret of the Shamrock by Lisa M. Hendey

When Patrick has to work on his church's cleaning team on a Saturday, he thinks his weekend fun is ruined. But when the old church bells start chiming, Patrick and his pet frog, Francis, are suddenly taken back through time to ancient Ireland. Will the strange shepherd he meets be able to help him get home, or will Patrick be stuck taking care of sheep in the rain and mud forever? Find out in The Secret of the Shamrock. Book 1 in the Chime Travelers series, exciting new chapter books ideal for children in grades 2-5.