Answer:
Dryads are mythological spirits who make their homes in trees.
Explanation:
1) correct spelling of spirts > spirits
2) Dryads is plural, so you need the pronoun to be 'their' not 'its'
3) I changed home> homes because presumably the dryads live in multiple homes, but it could be argued that 'make their home' is an expression and is acceptable.
4) I would not add a comma before the 'who' because in this sentence it seems that making their homes in trees is an essential part of defining who Dryads are.
The book of dragons by Robert Hernando
