Simplify the following text for a Grade 11 native English-speaking person.
Original: In January 1900 , while prospecting in Skagway , Alaska , Burnham received the following telegram : Lord Roberts appoints you on his personal staff as Chief of Scouts .
Simplified: In January 1900 , while prospecting in Skagway , Alaska , Burnham received a telegram : Lord Roberts appoints you on his personal staff as Chief of Scouts .