I saw the Invincible Abdullah series some time ago and made a mental note.
In an age where Harry Potter and Chronicles of Narnia are mentioned on nearly every secular homeschool blog, I desired a series of books that we Muslims could enjoy for our children and ourselves. I don't know if this is it, after all, we haven't read them yet, but if it's good, InshaALLAH, I'll let you know. The series is four paperbacks with corresponding workbooks, purchased separately. I got mine from Islamic Bookstore, (this isn't a paid advertisement by the way - it was cheaper for me since I'm in Canada).