An eccentric like all Helmsleys, eleven-year-old Archer escapes his overprotective mother and recruits two friends, Oliver and Adelaide, to help him plan a rescue of his long-lost grandparents, world-famous explorers who disappeared atop an iceberg in the Antarctic.
Editions · 5
Paperback
2015 · HarperCollins Children's Books
340 pp · EN
9780008149390
Paperback
2015 · HarperCollins Publishers
340 pp · EN
9780062320940
Paperback
2017 · HarperCollins Publishers Limited
EN
9780008149406
Paperback
2018 · HarperCollins Publishers
368 pp · EN
9780062320957
Paperback
2024 · Vermilion Labs DBA Bookroo
EN
9781962208420
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