Complex sentence: In 1803 Hornblower was imprisoned in the King's bench debtors prison but on his release in 1805 he managed to secure some work in mainland Europe building engines until his return to England in 1813.
Split into simpler sentences: In 1803 Hornblower was imprisoned in the King's bench debtors prison. On his release in 1805 he managed to secure some work in mainland Europe building engines until his return to England in 1813.