Preposterous Puzzles (Hippo puzzles)
by Rolf Heimann
ISBN 13: 9780590765770
Format: Paperback (32 pages) Publisher: Scholastic Hippo Published: 01 Jun 1991
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Rolf's Brain-Busting Bonanza
ISBN 13: 9781877003219
Format: Paperback (48 pages) Publisher: Little Hare Published: 24 Sep 2003
Rolfs Flummoxing Flabbergaster Featuring Fickle and Retch
ISBN 13: 9781921049101
Format: Paperback (64 pages) Publisher: Little Hare Published: 01 Nov 2005
Rolf Heimann's Perplexing Picture Puzzles (Puzzle books)
ISBN 13: 9780590551434
Format: Paperback (1 pages) Publisher: Scholastic Hippo Published: 01 Feb 1993
Rolf's Corny Copia: Little Hare Books
ISBN 13: 9781921049675
Format: Paperback (64 pages) Publisher: Little Hare Published: 25 Oct 2006
Headspinners
ISBN 13: 9781903207802
Format: Paperback (32 pages) Publisher: Southwood Books Published: 19 Nov 2002
Ultimaze (Puzzle books)
ISBN 13: 9780590554657
Format: Paperback (32 pages) Publisher: Scholastic Hippo Published: 18 Mar 1994
Drain Your Brain
ISBN 13: 9781903207819
Format: Paperback (32 pages) Publisher: Southwood Books Published: 07 Nov 2002
Mind Munchers
ISBN 13: 9781903207826
A Kingdom for a Hat
by Rolf Heimann, John Spooner
ISBN 13: 9780734405494
Format: Hardcover (46 pages) Publisher: Lothian Children's Books Published: 01 Mar 2003
Puzzle Mazia: Little Hare Books
ISBN 13: 9781877003646
Format: Paperback (32 pages) Publisher: Little Hare Published: 27 Oct 2004
Aquamaze
ISBN 13: 9781921541025
Format: Paperback (32 pages) Publisher: Little Hare Published: 01 May 2009