Simplify the following text for a Grade 13 native English-speaking person.
Original: However , they were released without any bloodshed and Hooker returned to Darjeeling where he spent January and February 1850 writing his journals , replacing specimens lost during his detention and planning a journey for his last year in India .
Simplified: Hooker returned to Darjeeling where he spent January and February 1850 writing his journals , replacing specimens lost during his detention and planning a journey for his last year in India .