Published: Apr 12, 2010 6:59 PM EDT

Related: 11-year-old Florida girl found alive

WINTER SPRINGS, Fla. - More than 150 searchers have been scouring an Orlando suburb in search of 11-year-old Nadia Bloom, who was last seen on Friday, April 9, 2010.

Bloom is said to suffer from Asperger's Syndrome, a condition that falls under the autism spectrum. The girl's abandoned bicycle was found near a wooded area that has been the site of an intense search.

According to new information released Monday, April 12, authorities believe the 11-year-old may have ventured into the woods after she was inspired by a character named Lanie in book in the American Girl Doll series. It's believed that Bloom had the book with her when she disappeared; authorities believe that she may have been trying to emulate the book's adventurous main character, who explores the outdoors, goes camping in her backyard and photographs wildlife.

The Winter Springs Police Department has been looking for Nadia Bloom since Friday. Authorities say she disappeared the same day her sister and father left for a trip to the Everglades with a Brownie troop. Police believe she disappeared into woods near her house and say K-9 dogs have tracked the child's scent into the woods near Lake Jesup. No signs of the girl have been found.

Related: 11-year-old Florida girl found alive